how i get drawing rectangle size after setMatrix function called

curianlord

//....
live2DModel2->setMatrix(matrix);

//live2DModel2->GetVertixPostion ?? or live2DModel2->GetRectSize();

[Deleted User]

Hi,


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

curianlord

i want get axis aligned whole pixel size to drawing model

[Deleted User]

@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.

curianlord

This is my test program screenshot

curianlord

curianlord

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
}
}

curianlord

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..

curianlord

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

curianlord

any solution for it ???

[Deleted User]

@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?

[Deleted User]

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?