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brokenbeep
brokenbeep

DXF Export headache

in Contributed Library Questions  •  2 years ago  
Hi everyone, I am having a few problems replicating a fantastic example of a DXF Export. I've included 2 lots of code below, the first being the original example, the second being a copy of the code I have tried to implement it into. The problem regards exporting a complex 3d shape. The first example builds a complex shape with a for loop and is able to export the shape as a whole. I have tried to do this in the second example but just end up being able to export one single instance of box and not the whole shape as it appears on my screen, i.e several boxes of varying heights in a line. Here is a screen shot of the output of processing with the resulting DXF export:




Notice how the Processing output (on the left) is made of loads of boxes and the DFX output, when opened in another program (Solidworks eDrawing), is reduced to just a single instance of a box. The original example code, listed first below, works fine in both programs. 

Any help would be appreciated!

Copy code
  2. import peasy.*;
  3. import processing.dxf.*;
  4.  
  5. /*-------------------------------------------------------
  6.  *** GLOBAL VARIABLES ***
  7.  --------------------------------------------------------*/
  8. // Variable to store boolean 'export' toggle
  9. boolean dxfExport;
  10. PeasyCam theCamera;
  11. float BBOX = 400;
  12. /*-------------------------------------------------------
  13.  *** GLOBAL SETUP ***
  14.  --------------------------------------------------------*/
  15. void setup() {
  16.  
  17.   //--------------------- general things
  18.   size(600, 600, P3D);
  19.   background(0);
  20.   theCamera = new PeasyCam(this, 2*BBOX);
  21.   theCamera.lookAt(BBOX/2,BBOX/2,BBOX/2);
  22. }
  23.  
  24. /*-------------------------------------------------------
  25.  *** GLOBAL SETUP ***
  26.  --------------------------------------------------------*/
  27. void draw() {
  28.  
  29.   //--------------------- general things
  30.   background(0);
  31.   lights();
  32.  
  33.   //--------------------- if export is TRUE
  34.   if (dxfExport) {
  35.     beginRaw(DXF, "output.dxf");
  36.   }
  37.  
  38.   //--------------------- do all your drawing here
  39.   stroke(120);
  40.   fill(120);
  41.   pushMatrix();
  42.   for(int i = 0; i < 100; ++i) {
  43.     translate(BBOX/2,BBOX/2,BBOX/2);  
  44.     rotateX(i*5);
  45.     rotateY(i*7);
  46.     rotateZ(i*12);
  47.     box (BBOX +(5*i) );
  48.   }
  49.   popMatrix();
  50.  
  51.   //--------------------- finish export and set dxfExport to FALSE
  52.   if(dxfExport) {
  53.     endRaw();
  54.     dxfExport = false;
  55.   }
  56. }
  57.  
  58. /*-------------------------------------------------------
  59.  *** GLOBAL KEYSTOKE EVENTS ***
  60.  --------------------------------------------------------*/
  61. void keyPressed() {
  62.   // use a key press so that it doesn't make a million files
  63.   switch (key) {
  64.  
  65.     case 'x':
  66.     dxfExport = true;
  67.     println("DXF export complete!");
  68.     break;
  69.  
  70.     case 's':
  71.     saveFrame("boxes.jpg");
  72.     println("screen grab made");
  73.     break;
  74.   }
  75.  
  76. }

 Here's my code:

Copy code
  2. import krister.Ess.*;
  3. import peasy.*;
  4. import processing.dxf.*;
  5. //---------------------------------------------------------//Declare Array
  6. ArrayList myArrayList;

  8. AudioChannel myChannel;
  9. FFT myFFT;
  10.   int d=30;
  11.   int bufferSize=256;
  12.   boolean writeToArray;
  13.   boolean drawFromArray;
  14.   boolean dxfExport;
  15.   PeasyCam theCamera;
  16.   float BBOX = 400;


  19. void setup() {
  20.   size(1000,500,P3D);
  21.   background(0);
  22.   theCamera = new PeasyCam(this, 2*BBOX);
  23.   theCamera.lookAt(BBOX/2,BBOX/2,BBOX/2);
  24.   Ess.start(this);  // start up Ess
  25. //--------------------------------------------------------//Create Array  
  26.   myArrayList = new ArrayList();
  27.   
  28. //--------------------------------------------------------//Setup FFT 

  30.   myChannel=new AudioChannel("cell.aif");// load "cell.aif" into a new AudioChannel
  31.   myFFT=new FFT(bufferSize*2); // set FFT size
  32.   myFFT.damp(.1); // damp our spectrum data
  33.   myChannel.play(1);  // start the sound looping once
  34.   
  35.   fill(#B2B0B0);
  36. }


  39. void draw() {
  40.   lights();
  41.    background (0);
  42. //--------------------- if export is TRUE
  43.   if (dxfExport) {
  44.     beginRaw(DXF, "output.dxf");
  45.   }
  46.   
  47. //------------------------------------------------------------------------------------------------------------//If 'W/w" is pressed, write to array
  48.    if(keyPressed) {
  49.    if (key == 'w' || key == 'W') {
  50.       writeToArray = true;}
  51.   } else {
  52.       writeToArray = false;}
  53.       if(writeToArray){
  54. //-------------------------------------------------------//get our spectrum data
  55.       myFFT.getSpectrum(myChannel);
  56. //-------------------------------------------------------//write values to our ArrayList
  57.       myArrayList.add(myFFT.spectrum[1]);
  58.   }
  59. //------------------------------------------------------------------------------------------------------------//Draw from array        
  60.     for(int i = 0; i < myArrayList.size(); i++){ 
  61. //-------------------------------------------------------//map each number from the array to a useful range
  62.     float x = map((Float)myArrayList.get(i), 0.0, 0.05, 0, 100);    
  63. //-------------------------------------------------------//draw something
  64.     pushMatrix();
  65.     translate(i*5, height/2, i*2-500);
  66.     box(5, x, 5);
  67.     popMatrix();
  68. //-------------------------------------------------------//finish export and set dxfExport to FALSE
  69.     if(dxfExport) {
  70.     endRaw();
  71.     dxfExport = false;
  72.   }
  73.  }
  74. }
  75.  
  76. void keyPressed() {
  77.   // use a key press so that it doesn't make a million files
  78.   switch (key) {
  79.  
  80.     case 'x':
  81.     dxfExport = true;
  82.     println("DXF export complete!");
  83.     break;
  84.  
  85.     case 's':
  86.     saveFrame("boxes.jpg");
  87.     println("screen grab made");
  88.     break;
  89.   }
  90. }
  91. //-------------------------------------------------------//we are done, clean up Ess
  92. public void stop() {
  93.   Ess.stop();
  94.   super.stop();
  95. }

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