how i get drawing rectangle size after setMatrix function called

Comments

• [Deleted User]

  February 2016

  Hi,
  
  
  thanks for using Live2D! Do you want to get the axis aligned margins of the whole model?

  0 · Share on FacebookShare on Twitter Share on Google+
• curianlord

  March 2016

  i want get axis aligned whole pixel size to drawing model

  0 · Share on FacebookShare on Twitter Share on Google+
• [Deleted User]

  March 2016

  @curianlord
  The current SDK currently doesn't provide an easy way to do this...
  My first comments to this question show a way to do it - although not good, currently probably the best you can do. The functions called are basically the same in the c++ based SDKs but feel free to ask questions.

  0 · Share on FacebookShare on Twitter Share on Google+
• curianlord

  March 2016 edited March 2016

  This is my test program screenshot

  0 · Share on FacebookShare on Twitter Share on Google+
• curianlord

  March 2016

  
  

  0 · Share on FacebookShare on Twitter Share on Google+
• curianlord

  March 2016 edited March 2016

  float left=live2DModel->getCanvasWidth();
  float right=0;
  float top=live2DModel->getCanvasHeight();
  float bottom=0;
  
  for(int i=0; isize(); ++i)
  {
  PartsData* part = (*parts)[i];
  int pointCount = 0;
  float* points = live2DModel->getTransformedPoints(live2DModel->getPartsDataIndex(part->getPartsDataID()),&pointCount);
  
  for (int i = 0; i < pointCount; i++)
  {
  float x = points[DEF::VERTEX_OFFSET+i*DEF::VERTEX_STEP];
  float y = points[DEF::VERTEX_OFFSET+i*DEF::VERTEX_STEP+1];
  
  if(x < left)left=x; // Min x
  if(x > right)right=x; // Max x
  if(y < top)top=y; // Min y
  if(y > bottom)bottom=y; // Max y
  }
  }

  0 · Share on FacebookShare on Twitter Share on Google+
• curianlord

  March 2016

  My Test Program Window Size is 1024 * 768 but the calculated value is left = 744.523987, right = 1652.80640, top 199.542847, bottom = 2840.10376...
  This Size is bigger than window size..

  0 · Share on FacebookShare on Twitter Share on Google+
• curianlord

  March 2016

  I want using it Game UI.
  So it must offer, pixel compact scalability and hitting test for pixel coordinate

  0 · Share on FacebookShare on Twitter Share on Google+
• curianlord

  March 2016

  any solution for it ???

  0 · Share on FacebookShare on Twitter Share on Google+
• [Deleted User]

  March 2016

  @curianlord

  So it must offer, pixel compact scalability and hitting test for pixel coordinate

  Do you mean that you need the coordinates in screen space?

  0 · Share on FacebookShare on Twitter Share on Google+
• [Deleted User]

  March 2016

  If yes, the coordinates you get from that function are in Live2D's model space, so you would have to convert them back or the UI coordinates forth. Do you set the projection matrix, etc. by yourself?

  0 · Share on FacebookShare on Twitter Share on Google+