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Introducing cameo, a toolbox of CAM operations.
This commit is contained in:
Werner Almesberger
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cameo/COPYING.GPLv2
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GNU GENERAL PUBLIC LICENSE
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Version 2, June 1991
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Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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Preamble
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||||||
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The licenses for most software are designed to take away your
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freedom to share and change it. By contrast, the GNU General Public
|
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|
License is intended to guarantee your freedom to share and change free
|
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|
software--to make sure the software is free for all its users. This
|
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|
General Public License applies to most of the Free Software
|
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|
Foundation's software and to any other program whose authors commit to
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using it. (Some other Free Software Foundation software is covered by
|
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the GNU Lesser General Public License instead.) You can apply it to
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your programs, too.
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|
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|
When we speak of free software, we are referring to freedom, not
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price. Our General Public Licenses are designed to make sure that you
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have the freedom to distribute copies of free software (and charge for
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this service if you wish), that you receive source code or can get it
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if you want it, that you can change the software or use pieces of it
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in new free programs; and that you know you can do these things.
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To protect your rights, we need to make restrictions that forbid
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anyone to deny you these rights or to ask you to surrender the rights.
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These restrictions translate to certain responsibilities for you if you
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distribute copies of the software, or if you modify it.
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For example, if you distribute copies of such a program, whether
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gratis or for a fee, you must give the recipients all the rights that
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you have. You must make sure that they, too, receive or can get the
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source code. And you must show them these terms so they know their
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rights.
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We protect your rights with two steps: (1) copyright the software, and
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(2) offer you this license which gives you legal permission to copy,
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distribute and/or modify the software.
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Also, for each author's protection and ours, we want to make certain
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that any problems introduced by others will not reflect on the original
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authors' reputations.
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Finally, any free program is threatened constantly by software
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patents. We wish to avoid the danger that redistributors of a free
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program will individually obtain patent licenses, in effect making the
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program proprietary. To prevent this, we have made it clear that any
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patent must be licensed for everyone's free use or not licensed at all.
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The precise terms and conditions for copying, distribution and
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modification follow.
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GNU GENERAL PUBLIC LICENSE
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. This License applies to any program or other work which contains
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a notice placed by the copyright holder saying it may be distributed
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under the terms of this General Public License. The "Program", below,
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refers to any such program or work, and a "work based on the Program"
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means either the Program or any derivative work under copyright law:
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that is to say, a work containing the Program or a portion of it,
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either verbatim or with modifications and/or translated into another
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language. (Hereinafter, translation is included without limitation in
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the term "modification".) Each licensee is addressed as "you".
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Activities other than copying, distribution and modification are not
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covered by this License; they are outside its scope. The act of
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running the Program is not restricted, and the output from the Program
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Whether that is true depends on what the Program does.
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1. You may copy and distribute verbatim copies of the Program's
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conspicuously and appropriately publish on each copy an appropriate
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and give any other recipients of the Program a copy of this License
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along with the Program.
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You may charge a fee for the physical act of transferring a copy, and
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you may at your option offer warranty protection in exchange for a fee.
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2. You may modify your copy or copies of the Program or any portion
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distribute such modifications or work under the terms of Section 1
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above, provided that you also meet all of these conditions:
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a) You must cause the modified files to carry prominent notices
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b) You must cause any work that you distribute or publish, that in
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whole or in part contains or is derived from the Program or any
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c) If the modified program normally reads commands interactively
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interactive use in the most ordinary way, to print or display an
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these conditions, and telling the user how to view a copy of this
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License. (Exception: if the Program itself is interactive but
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does not normally print such an announcement, your work based on
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the Program is not required to print an announcement.)
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These requirements apply to the modified work as a whole. If
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identifiable sections of that work are not derived from the Program,
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and can be reasonably considered independent and separate works in
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sections when you distribute them as separate works. But when you
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distribute the same sections as part of a whole which is a work based
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on the Program, the distribution of the whole must be on the terms of
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this License, whose permissions for other licensees extend to the
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entire whole, and thus to each and every part regardless of who wrote it.
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Thus, it is not the intent of this section to claim rights or contest
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your rights to work written entirely by you; rather, the intent is to
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exercise the right to control the distribution of derivative or
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collective works based on the Program.
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In addition, mere aggregation of another work not based on the Program
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a storage or distribution medium does not bring the other work under
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the scope of this License.
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3. You may copy and distribute the Program (or a work based on it,
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under Section 2) in object code or executable form under the terms of
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Sections 1 and 2 above provided that you also do one of the following:
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a) Accompany it with the complete corresponding machine-readable
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source code, which must be distributed under the terms of Sections
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1 and 2 above on a medium customarily used for software interchange; or,
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b) Accompany it with a written offer, valid for at least three
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years, to give any third party, for a charge no more than your
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cost of physically performing source distribution, a complete
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machine-readable copy of the corresponding source code, to be
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distributed under the terms of Sections 1 and 2 above on a medium
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customarily used for software interchange; or,
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c) Accompany it with the information you received as to the offer
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to distribute corresponding source code. (This alternative is
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allowed only for noncommercial distribution and only if you
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received the program in object code or executable form with such
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an offer, in accord with Subsection b above.)
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The source code for a work means the preferred form of the work for
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making modifications to it. For an executable work, complete source
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control compilation and installation of the executable. However, as a
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special exception, the source code distributed need not include
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anything that is normally distributed (in either source or binary
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If distribution of executable or object code is made by offering
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access to copy the source code from the same place counts as
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distribution of the source code, even though third parties are not
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compelled to copy the source along with the object code.
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4. You may not copy, modify, sublicense, or distribute the Program
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except as expressly provided under this License. Any attempt
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otherwise to copy, modify, sublicense or distribute the Program is
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void, and will automatically terminate your rights under this License.
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However, parties who have received copies, or rights, from you under
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this License will not have their licenses terminated so long as such
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parties remain in full compliance.
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5. You are not required to accept this License, since you have not
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signed it. However, nothing else grants you permission to modify or
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distribute the Program or its derivative works. These actions are
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prohibited by law if you do not accept this License. Therefore, by
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modifying or distributing the Program (or any work based on the
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Program), you indicate your acceptance of this License to do so, and
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all its terms and conditions for copying, distributing or modifying
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the Program or works based on it.
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6. Each time you redistribute the Program (or any work based on the
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Program), the recipient automatically receives a license from the
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these terms and conditions. You may not impose any further
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restrictions on the recipients' exercise of the rights granted herein.
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You are not responsible for enforcing compliance by third parties to
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this License.
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7. If, as a consequence of a court judgment or allegation of patent
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infringement or for any other reason (not limited to patent issues),
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conditions are imposed on you (whether by court order, agreement or
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otherwise) that contradict the conditions of this License, they do not
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excuse you from the conditions of this License. If you cannot
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distribute so as to satisfy simultaneously your obligations under this
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License and any other pertinent obligations, then as a consequence you
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may not distribute the Program at all. For example, if a patent
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license would not permit royalty-free redistribution of the Program by
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all those who receive copies directly or indirectly through you, then
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the only way you could satisfy both it and this License would be to
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refrain entirely from distribution of the Program.
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If any portion of this section is held invalid or unenforceable under
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any particular circumstance, the balance of the section is intended to
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apply and the section as a whole is intended to apply in other
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circumstances.
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It is not the purpose of this section to induce you to infringe any
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patents or other property right claims or to contest validity of any
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such claims; this section has the sole purpose of protecting the
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integrity of the free software distribution system, which is
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implemented by public license practices. Many people have made
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generous contributions to the wide range of software distributed
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to distribute software through any other system and a licensee cannot
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impose that choice.
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This section is intended to make thoroughly clear what is believed to
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be a consequence of the rest of this License.
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8. If the distribution and/or use of the Program is restricted in
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certain countries either by patents or by copyrighted interfaces, the
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original copyright holder who places the Program under this License
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may add an explicit geographical distribution limitation excluding
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those countries, so that distribution is permitted only in or among
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countries not thus excluded. In such case, this License incorporates
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the limitation as if written in the body of this License.
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|
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9. The Free Software Foundation may publish revised and/or new versions
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of the General Public License from time to time. Such new versions will
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be similar in spirit to the present version, but may differ in detail to
|
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address new problems or concerns.
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|
||||||
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Each version is given a distinguishing version number. If the Program
|
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specifies a version number of this License which applies to it and "any
|
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later version", you have the option of following the terms and conditions
|
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either of that version or of any later version published by the Free
|
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Software Foundation. If the Program does not specify a version number of
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this License, you may choose any version ever published by the Free Software
|
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Foundation.
|
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|
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10. If you wish to incorporate parts of the Program into other free
|
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programs whose distribution conditions are different, write to the author
|
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to ask for permission. For software which is copyrighted by the Free
|
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Software Foundation, write to the Free Software Foundation; we sometimes
|
||||||
|
make exceptions for this. Our decision will be guided by the two goals
|
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of preserving the free status of all derivatives of our free software and
|
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of promoting the sharing and reuse of software generally.
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|
||||||
|
NO WARRANTY
|
||||||
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|
||||||
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11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
|
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FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
|
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OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
|
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PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
|
||||||
|
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||||
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
|
||||||
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TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
|
||||||
|
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
|
||||||
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REPAIR OR CORRECTION.
|
||||||
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|
||||||
|
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||||
|
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||||
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REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
|
||||||
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INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
|
||||||
|
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
|
||||||
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TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
|
||||||
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YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
|
||||||
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PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||||||
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POSSIBILITY OF SUCH DAMAGES.
|
||||||
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|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
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|
||||||
|
How to Apply These Terms to Your New Programs
|
||||||
|
|
||||||
|
If you develop a new program, and you want it to be of the greatest
|
||||||
|
possible use to the public, the best way to achieve this is to make it
|
||||||
|
free software which everyone can redistribute and change under these terms.
|
||||||
|
|
||||||
|
To do so, attach the following notices to the program. It is safest
|
||||||
|
to attach them to the start of each source file to most effectively
|
||||||
|
convey the exclusion of warranty; and each file should have at least
|
||||||
|
the "copyright" line and a pointer to where the full notice is found.
|
||||||
|
|
||||||
|
<one line to give the program's name and a brief idea of what it does.>
|
||||||
|
Copyright (C) <year> <name of author>
|
||||||
|
|
||||||
|
This program is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 2 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License along
|
||||||
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
||||||
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||||
|
|
||||||
|
Also add information on how to contact you by electronic and paper mail.
|
||||||
|
|
||||||
|
If the program is interactive, make it output a short notice like this
|
||||||
|
when it starts in an interactive mode:
|
||||||
|
|
||||||
|
Gnomovision version 69, Copyright (C) year name of author
|
||||||
|
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||||
|
This is free software, and you are welcome to redistribute it
|
||||||
|
under certain conditions; type `show c' for details.
|
||||||
|
|
||||||
|
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||||
|
parts of the General Public License. Of course, the commands you use may
|
||||||
|
be called something other than `show w' and `show c'; they could even be
|
||||||
|
mouse-clicks or menu items--whatever suits your program.
|
||||||
|
|
||||||
|
You should also get your employer (if you work as a programmer) or your
|
||||||
|
school, if any, to sign a "copyright disclaimer" for the program, if
|
||||||
|
necessary. Here is a sample; alter the names:
|
||||||
|
|
||||||
|
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||||||
|
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||||||
|
|
||||||
|
<signature of Ty Coon>, 1 April 1989
|
||||||
|
Ty Coon, President of Vice
|
||||||
|
|
||||||
|
This General Public License does not permit incorporating your program into
|
||||||
|
proprietary programs. If your program is a subroutine library, you may
|
||||||
|
consider it more useful to permit linking proprietary applications with the
|
||||||
|
library. If this is what you want to do, use the GNU Lesser General
|
||||||
|
Public License instead of this License.
|
||||||
76
cameo/Makefile
Normal file
76
cameo/Makefile
Normal file
@ -0,0 +1,76 @@
|
|||||||
|
#
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||||||
|
# Makefile - Makefile of cameo
|
||||||
|
#
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||||||
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# Written 2010 by Werner Almesberger
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||||||
|
# Copyright 2010 by Werner Almesberger
|
||||||
|
#
|
||||||
|
# This program is free software; you can redistribute it and/or modify
|
||||||
|
# it under the terms of the GNU General Public License as published by
|
||||||
|
# the Free Software Foundation; either version 2 of the License, or
|
||||||
|
# (at your option) any later version.
|
||||||
|
#
|
||||||
|
|
||||||
|
PREFIX ?= /usr/local
|
||||||
|
|
||||||
|
SHELL=/bin/bash
|
||||||
|
|
||||||
|
MAIN=cameo
|
||||||
|
OBJS=cameo.o gnuplot.o path.o
|
||||||
|
|
||||||
|
CFLAGS=-Wall -g
|
||||||
|
LDFLAGS=-lm
|
||||||
|
|
||||||
|
# ----- Verbosity control -----------------------------------------------------
|
||||||
|
|
||||||
|
CC_normal := $(CC)
|
||||||
|
DEPEND_normal := $(CPP) $(CFLAGS) -MM -MG
|
||||||
|
|
||||||
|
CC_quiet = @echo " CC " $@ && $(CC_normal)
|
||||||
|
DEPEND_quiet = @$(DEPEND_normal)
|
||||||
|
|
||||||
|
ifeq ($(V),1)
|
||||||
|
CC = $(CC_normal)
|
||||||
|
DEPEND = $(DEPEND_normal)
|
||||||
|
else
|
||||||
|
CC = $(CC_quiet)
|
||||||
|
DEPEND = $(DEPEND_quiet)
|
||||||
|
endif
|
||||||
|
|
||||||
|
# ----- Rules -----------------------------------------------------------------
|
||||||
|
|
||||||
|
.PHONY: all clean spotless
|
||||||
|
|
||||||
|
all: $(MAIN)
|
||||||
|
|
||||||
|
$(MAIN): $(OBJS)
|
||||||
|
|
||||||
|
clean:
|
||||||
|
rm -f $(OBJS) $(OBJS:.o=.d)
|
||||||
|
|
||||||
|
spotless: clean
|
||||||
|
rm -f $(MAIN)
|
||||||
|
|
||||||
|
# ----- Install / uninstall ---------------------------------------------------
|
||||||
|
|
||||||
|
install: all
|
||||||
|
mkdir -p $(DESTDIR)/$(PREFIX)/bin/
|
||||||
|
install -m 755 $(MAIN) $(DESTDIR)/$(PREFIX)/bin/
|
||||||
|
|
||||||
|
uninstall:
|
||||||
|
rm -f $(DESTDIR)/$(PREFIX)/bin/$(MAIN)
|
||||||
|
|
||||||
|
# ----- Dependencies ----------------------------------------------------------
|
||||||
|
|
||||||
|
# compile and generate dependencies, from fped, based on
|
||||||
|
# http://scottmcpeak.com/autodepend/autodepend.html
|
||||||
|
|
||||||
|
%.o: %.c
|
||||||
|
$(CC) -c $(CFLAGS) $*.c -o $*.o
|
||||||
|
$(DEPEND) $*.c | \
|
||||||
|
sed -e \
|
||||||
|
'/^\(.*:\)\? */{p;s///;s/ *\\\?$$/ /;s/ */:\n/g;H;}' \
|
||||||
|
-e '$${g;p;}' -e d >$*.d; \
|
||||||
|
[ "$${PIPESTATUS[*]}" = "0 0" ] || { rm -f $*.d; exit 1; }
|
||||||
|
|
||||||
|
-include $(OBJS:.o=.d)
|
||||||
|
|
||||||
21
cameo/README
Normal file
21
cameo/README
Normal file
@ -0,0 +1,21 @@
|
|||||||
|
CAM Engineering and Operation
|
||||||
|
=============================
|
||||||
|
|
||||||
|
Cameo is a collection of CAM tools that convert between various file
|
||||||
|
formats and adapt the toolpath.
|
||||||
|
|
||||||
|
This is a work in progress. The plan is to integrate all the utilities
|
||||||
|
currently floating around in
|
||||||
|
http://svn.openmoko.org/developers/werner/cncmap/
|
||||||
|
into a single program and to better share common functionality.
|
||||||
|
|
||||||
|
This work is distributed under the terms of the GNU GENERAL PUBLIC
|
||||||
|
LICENSE, Version 2:
|
||||||
|
|
||||||
|
This program is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 2 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
For your convenience, a copy of the complete license has been included
|
||||||
|
in the file COPYING.GPLv2.
|
||||||
63
cameo/cameo.c
Normal file
63
cameo/cameo.c
Normal file
@ -0,0 +1,63 @@
|
|||||||
|
/*
|
||||||
|
* cameo.c - Toolpath adaptation and machine control
|
||||||
|
*
|
||||||
|
* Written 2010 by Werner Almesberger
|
||||||
|
* Copyright 2010 Werner Almesberger
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <assert.h>
|
||||||
|
|
||||||
|
#include "path.h"
|
||||||
|
#include "gnuplot.h"
|
||||||
|
|
||||||
|
|
||||||
|
static void usage(const char *name)
|
||||||
|
{
|
||||||
|
fprintf(stderr, "usage: %s r_mm [in.gnuplot [out.gnuplot]]\n",
|
||||||
|
name);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int main(int argc, char **argv)
|
||||||
|
{
|
||||||
|
char *in = NULL, *out = NULL;
|
||||||
|
double r;
|
||||||
|
struct path *paths;
|
||||||
|
|
||||||
|
switch (argc) {
|
||||||
|
case 4:
|
||||||
|
out = argv[3];
|
||||||
|
/* fall through */
|
||||||
|
case 3:
|
||||||
|
in = argv[2];
|
||||||
|
/* fall through */
|
||||||
|
case 2:
|
||||||
|
r = atof(argv[1]);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
usage(*argv);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* To do:
|
||||||
|
* - auto-detect orientation
|
||||||
|
* - handle multiple paths
|
||||||
|
* - instead of reversing the path, reverse the handedness
|
||||||
|
*/
|
||||||
|
paths = gnuplot_read(in, r);
|
||||||
|
assert(!paths->next); /* we don't handle this yet */
|
||||||
|
paths = path_reverse(paths);
|
||||||
|
paths = path_offset(paths, 1);
|
||||||
|
gnuplot_write(out, paths);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
108
cameo/gnuplot.c
Normal file
108
cameo/gnuplot.c
Normal file
@ -0,0 +1,108 @@
|
|||||||
|
/*
|
||||||
|
* gnuplot.c - Gnuplot file input/output
|
||||||
|
*
|
||||||
|
* Written 2010 by Werner Almesberger
|
||||||
|
* Copyright 2010 Werner Almesberger
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#include "path.h"
|
||||||
|
#include "gnuplot.h"
|
||||||
|
|
||||||
|
|
||||||
|
struct path *gnuplot_read(const char *name, double r_tool_default)
|
||||||
|
{
|
||||||
|
FILE *file;
|
||||||
|
int lineno = 0;
|
||||||
|
char buf[1024];
|
||||||
|
double x, y, z, tmp;
|
||||||
|
double r_tool = r_tool_default;
|
||||||
|
int n;
|
||||||
|
struct path *paths = NULL, *path = NULL;
|
||||||
|
struct path **lnk = &paths;
|
||||||
|
|
||||||
|
file = name ? fopen(name, "r") : stdin;
|
||||||
|
if (!file) {
|
||||||
|
perror(name);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
while (fgets(buf, sizeof(buf), file)) {
|
||||||
|
lineno++;
|
||||||
|
if (sscanf(buf, "#%%r_tool=%lf\n", &tmp) == 1)
|
||||||
|
r_tool = tmp;
|
||||||
|
if (*buf == '#')
|
||||||
|
continue;
|
||||||
|
n = sscanf(buf, "%lf %lf %lf\n", &x, &y, &z);
|
||||||
|
switch (n) {
|
||||||
|
case -1:
|
||||||
|
path = NULL;
|
||||||
|
r_tool = r_tool_default;
|
||||||
|
continue;
|
||||||
|
case 2:
|
||||||
|
z = 0;
|
||||||
|
/* fall through */
|
||||||
|
case 3:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
fprintf(stderr, "invalid data at %s line %d\n",
|
||||||
|
name ? name : "(stdin)", lineno);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!path) {
|
||||||
|
path = path_new(r_tool);
|
||||||
|
*lnk = path;
|
||||||
|
lnk = &path->next;
|
||||||
|
}
|
||||||
|
path_add(path, x, y, z);
|
||||||
|
}
|
||||||
|
fclose(file);
|
||||||
|
return paths;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static int gnuplot_do_write(FILE *file, const struct path *paths)
|
||||||
|
{
|
||||||
|
const struct path *path;
|
||||||
|
const struct point *p;
|
||||||
|
|
||||||
|
for (path = paths; path; path = path->next) {
|
||||||
|
if (path != paths)
|
||||||
|
if (fprintf(file, "\n") < 0)
|
||||||
|
return 0;
|
||||||
|
if (fprintf(file, "#%%r_tool=%f\n", path->r_tool) < 0)
|
||||||
|
return 0;
|
||||||
|
for (p = path->first; p; p = p->next)
|
||||||
|
if (fprintf(file, "%f %f %f\n", p->x, p->y, p->z) < 0)
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if (file != stdout && fclose(file) < 0)
|
||||||
|
return 0;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void gnuplot_write(const char *name, const struct path *paths)
|
||||||
|
{
|
||||||
|
FILE *file;
|
||||||
|
|
||||||
|
file = name ? fopen(name, "w") : stdout;
|
||||||
|
if (!file) {
|
||||||
|
perror(name);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (!gnuplot_do_write(file, paths)) {
|
||||||
|
perror(name ? name : "(stdout)");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
22
cameo/gnuplot.h
Normal file
22
cameo/gnuplot.h
Normal file
@ -0,0 +1,22 @@
|
|||||||
|
/*
|
||||||
|
* gnuplot.h - Gnuplot file input/output
|
||||||
|
*
|
||||||
|
* Written 2010 by Werner Almesberger
|
||||||
|
* Copyright 2010 Werner Almesberger
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef GNUPLOT_H
|
||||||
|
#define GNUPLOT_H
|
||||||
|
|
||||||
|
#include "path.h"
|
||||||
|
|
||||||
|
|
||||||
|
struct path *gnuplot_read(const char *name, double r_tool_default);
|
||||||
|
void gnuplot_write(const char *name, const struct path *paths);
|
||||||
|
|
||||||
|
#endif /* !GNUPLOT_H */
|
||||||
217
cameo/path.c
Normal file
217
cameo/path.c
Normal file
@ -0,0 +1,217 @@
|
|||||||
|
/*
|
||||||
|
* path.c - Toolpath operations
|
||||||
|
*
|
||||||
|
* Written 2010 by Werner Almesberger
|
||||||
|
* Copyright 2010 Werner Almesberger
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <math.h>
|
||||||
|
#include <assert.h>
|
||||||
|
|
||||||
|
#include "util.h"
|
||||||
|
#include "path.h"
|
||||||
|
|
||||||
|
|
||||||
|
struct path *path_new(double r_tool)
|
||||||
|
{
|
||||||
|
struct path *path;
|
||||||
|
|
||||||
|
path = alloc_type(struct path);
|
||||||
|
path->r_tool = r_tool;
|
||||||
|
path->first = path->last = NULL;
|
||||||
|
path->next = NULL;
|
||||||
|
return path;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static struct point *clone_point(struct point *p)
|
||||||
|
{
|
||||||
|
struct point *n;
|
||||||
|
|
||||||
|
n = alloc_type(struct point);
|
||||||
|
n->x = p->x;
|
||||||
|
n->y = p->y;
|
||||||
|
n->z = p->z;
|
||||||
|
n->next = NULL;
|
||||||
|
return n;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static int path_is_closed(const struct path *path)
|
||||||
|
{
|
||||||
|
if (path->first == path->last)
|
||||||
|
return 1;
|
||||||
|
return path->first->x == path->last->x &&
|
||||||
|
path->first->y == path->last->y && path->first->z == path->last->z;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void path_add_point(struct path *path, struct point *p)
|
||||||
|
{
|
||||||
|
p->next = NULL;
|
||||||
|
if (path->last)
|
||||||
|
path->last->next = p;
|
||||||
|
else
|
||||||
|
path->first = p;
|
||||||
|
path->last = p;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void path_add(struct path *path, double x, double y, double z)
|
||||||
|
{
|
||||||
|
struct point *p;
|
||||||
|
|
||||||
|
p = alloc_type(struct point);
|
||||||
|
p->x = x;
|
||||||
|
p->y = y;
|
||||||
|
p->z = z;
|
||||||
|
return path_add_point(path, p);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
struct path *path_reverse(const struct path *path)
|
||||||
|
{
|
||||||
|
struct path *new;
|
||||||
|
const struct point *p;
|
||||||
|
struct point *n;
|
||||||
|
|
||||||
|
new = path_new(path->r_tool);
|
||||||
|
for (p = path->first; p; p = p->next) {
|
||||||
|
n = alloc_type(struct point);
|
||||||
|
n->x = p->x;
|
||||||
|
n->y = p->y;
|
||||||
|
n->z = p->z;
|
||||||
|
n->next = new->first;
|
||||||
|
if (!new->last)
|
||||||
|
new->last = n;
|
||||||
|
new->first = n;
|
||||||
|
}
|
||||||
|
return new;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static struct point *offset_point(const struct point *a, const struct point *b,
|
||||||
|
const struct point *c, double off)
|
||||||
|
{
|
||||||
|
double ax, ay, bx, by;
|
||||||
|
double aa, bb;
|
||||||
|
double nx, ny;
|
||||||
|
struct point *p;
|
||||||
|
|
||||||
|
ax = b->x-a->x;
|
||||||
|
ay = b->y-a->y;
|
||||||
|
bx = c->x-b->x;
|
||||||
|
by = c->y-b->y;
|
||||||
|
|
||||||
|
aa = hypot(ax, ay);
|
||||||
|
bb = hypot(bx, by);
|
||||||
|
nx = -(ay/aa+by/bb);
|
||||||
|
ny = ax/aa+bx/bb;
|
||||||
|
|
||||||
|
nx *= off;
|
||||||
|
ny *= off;
|
||||||
|
|
||||||
|
p = alloc_type(struct point);
|
||||||
|
p->x = b->x+nx;
|
||||||
|
p->y = b->y+ny;
|
||||||
|
p->z = b->z;
|
||||||
|
p->next = NULL;
|
||||||
|
|
||||||
|
return p;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static int left_turn(const struct point *a, const struct point *b,
|
||||||
|
const struct point *c)
|
||||||
|
{
|
||||||
|
double ax, ay, bx, by;
|
||||||
|
|
||||||
|
ax = b->x-a->x;
|
||||||
|
ay = b->y-a->y;
|
||||||
|
bx = c->x-b->x;
|
||||||
|
by = c->y-b->y;
|
||||||
|
|
||||||
|
return (ax*by-ay*bx) >= 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* http://www.makecnc.com/bones.jpg
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
static struct point *dog_point(const struct point *edge,
|
||||||
|
const struct point *tool, double off)
|
||||||
|
{
|
||||||
|
double vx, vy, v;
|
||||||
|
struct point *p;
|
||||||
|
|
||||||
|
vx = edge->x-tool->x;
|
||||||
|
vy = edge->y-tool->y;
|
||||||
|
v = hypot(vx, vy);
|
||||||
|
|
||||||
|
vx *= 1-off/v;
|
||||||
|
vy *= 1-off/v;
|
||||||
|
|
||||||
|
p = alloc_type(struct point);
|
||||||
|
p->x = tool->x+vx;
|
||||||
|
p->y = tool->y+vy;
|
||||||
|
p->z = tool->z;
|
||||||
|
p->next = NULL;
|
||||||
|
|
||||||
|
return p;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* The tool is on the "left" side of the path. E.g., if the path goes from
|
||||||
|
* 6 o'clock to 12 o'clock, the tool would be at 9 o'clock.
|
||||||
|
*/
|
||||||
|
|
||||||
|
struct path *path_offset(const struct path *path, int notch)
|
||||||
|
{
|
||||||
|
struct path *new;
|
||||||
|
const struct point *prev, *p, *next;
|
||||||
|
struct point *n, *n2;
|
||||||
|
int dog;
|
||||||
|
|
||||||
|
assert(path_is_closed(path));
|
||||||
|
new = path_new(path->r_tool);
|
||||||
|
prev = path->first;
|
||||||
|
for (p = path->first->next; p; p = p->next) {
|
||||||
|
next = p->next ? p->next : path->first->next;
|
||||||
|
n = offset_point(prev, p, next, path->r_tool);
|
||||||
|
dog = notch && left_turn(prev, p, next);
|
||||||
|
if (dog)
|
||||||
|
n2 = clone_point(n);
|
||||||
|
path_add_point(new, n);
|
||||||
|
if (dog) {
|
||||||
|
path_add_point(new, dog_point(p, n2, path->r_tool));
|
||||||
|
path_add_point(new, n2);
|
||||||
|
}
|
||||||
|
prev = p;
|
||||||
|
}
|
||||||
|
path_add_point(new, clone_point(new->first));
|
||||||
|
return new;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void path_free(struct path *path)
|
||||||
|
{
|
||||||
|
struct point *next;
|
||||||
|
|
||||||
|
while (path->first) {
|
||||||
|
next = path->first->next;
|
||||||
|
free(path->first);
|
||||||
|
path->first = next;
|
||||||
|
}
|
||||||
|
free(path);
|
||||||
|
}
|
||||||
36
cameo/path.h
Normal file
36
cameo/path.h
Normal file
@ -0,0 +1,36 @@
|
|||||||
|
/*
|
||||||
|
* path.h - Toolpath operations
|
||||||
|
*
|
||||||
|
* Written 2010 by Werner Almesberger
|
||||||
|
* Copyright 2010 Werner Almesberger
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef PATH_H
|
||||||
|
#define PATH_H
|
||||||
|
|
||||||
|
|
||||||
|
struct point {
|
||||||
|
double x, y, z; /* mm */
|
||||||
|
struct point *next;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct path {
|
||||||
|
struct point *first, *last;
|
||||||
|
double r_tool; /* mm */
|
||||||
|
struct path *next;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
struct path *path_new(double r_tool);
|
||||||
|
void path_add(struct path *path, double x, double y, double z);
|
||||||
|
struct path *path_reverse(const struct path *path);
|
||||||
|
struct path *path_offset(const struct path *path, int notch);
|
||||||
|
void path_free(struct path *path);
|
||||||
|
|
||||||
|
#endif /* !PATH_H */
|
||||||
34
cameo/util.h
Normal file
34
cameo/util.h
Normal file
@ -0,0 +1,34 @@
|
|||||||
|
/*
|
||||||
|
* util.h - Common utility functions
|
||||||
|
*
|
||||||
|
* Written 2009 by Werner Almesberger
|
||||||
|
* Copyright 2009 by Werner Almesberger
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef UTIL_H
|
||||||
|
#define UTIL_H
|
||||||
|
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
|
||||||
|
#define alloc_size(s) \
|
||||||
|
({ void *alloc_size_tmp = malloc(s); \
|
||||||
|
if (!alloc_size_tmp) \
|
||||||
|
abort(); \
|
||||||
|
alloc_size_tmp; })
|
||||||
|
|
||||||
|
#define alloc_type(t) ((t *) alloc_size(sizeof(t)))
|
||||||
|
|
||||||
|
#define stralloc(s) \
|
||||||
|
({ char *stralloc_tmp = strdup(s); \
|
||||||
|
if (!stralloc_tmp) \
|
||||||
|
abort(); \
|
||||||
|
stralloc_tmp; })
|
||||||
|
|
||||||
|
#endif /* !UTIL_H */
|
||||||
Loading…
Reference in New Issue
Block a user