TorchTableToolChainTesting

Tool chain experiments for Torch Table programming

Initial tests ChuckH 22:52, 2 December 2012 (CET)

• environment: Windows XP SP3 laptop
• software installation
  • inkscape download inkscape 0.48.2, standard Windows exe installer to Program Files/Inkscape
  • 'gcodetools download gcodetools v1.7 here and unpack into Inkscape subdirectory per instructions.
  • implicitCAD
    • Haskell Platform download installer here. Some Haskell packages are not too happy with Windows path name conventions, particularly spaces inside filenames. I installed at C:\Haskell_Platform instead of the default C:\Program Files\Haskell_Platform. However, this may not be necessary.
    • download implicitCAD using cabal (see [instructions]), but it does not build properly. (Unfortunately I did not record exactly my sequence of steps here.)
    • patch implicitCAD files to enable Windows install. File:ImplicitCADWindowsPatch0.docThis patch made it compile for me, at the cost of disabling PNG output (not necessary for our toolchain) and disabling file includes (probably painful; need workaround).

simple test part

First, ignore the holes and draw the rectangular outline in escad:

/* 164_plate.escad */
p164_wd = 13.5;
p164_ln = 30.32;
square([p164_wd, p164_ln]);

(Note that I have put dimensions in inches.) run implicitCAD's extopenscad program

extopenscad 164_plate.escad out.svg

producing

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
    "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1"><g stroke="rgb(0,0,255)" stroke-width="1" fill="none"><polyline points="0.0e0,3.032e1 1.35e1,3.032e1 1.35e1,0.0e0 0.0e0,0.0e0 0.0e0,3.032e1 " /></g></svg>

Now if we simply open out.svg with inkscape, we get a tiny rectangle in the upper left corner:

Researching svg scaling

• http://stackoverflow.com/questions/1346922/svg-and-dpi-absolute-units-and-user-units-inkscape-vs-firefox-vs-imagemagick