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show how to fix triangle on map

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This commit is contained in:
Hannes Janetzek 2013-02-01 12:22:03 +01:00
parent bc9f517cb1
commit 7124d07bbd
1 changed files with 11 additions and 2 deletions
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13
src/org/oscim/renderer/overlays/CustomOverlay.java
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@ -58,6 +58,9 @@ public class CustomOverlay extends RenderOverlay {
newData = true; newData = true;
mInitialized = true; mInitialized = true;
// fix current MapPosition
updateMapPosition();
} }
} }
@ -92,8 +95,14 @@ public class CustomOverlay extends RenderOverlay {
GLES20.glVertexAttribPointer(hVertexPosition, 3, GLES20.GL_FLOAT, false, 0, mVertices); GLES20.glVertexAttribPointer(hVertexPosition, 3, GLES20.GL_FLOAT, false, 0, mVertices);
GLState.enableVertexArrays(hVertexPosition, -1); GLState.enableVertexArrays(hVertexPosition, -1);
// apply view and projection matrices /* apply view and projection matrices */
Matrix.multiplyMM(tmp, 0, proj, 0, pos.viewMatrix, 0); // set mvp (tmp) matrix relative to mMapPosition
// i.e. fixed on the map
setMatrix(pos, tmp);
Matrix.multiplyMM(tmp, 0, proj, 0, tmp, 0);
// or set mvp matrix fixed on screen center
// Matrix.multiplyMM(tmp, 0, proj, 0, pos.viewMatrix, 0);
GLES20.glUniformMatrix4fv(hMatrixPosition, 1, false, tmp, 0); GLES20.glUniformMatrix4fv(hMatrixPosition, 1, false, tmp, 0);
// Draw the triangle // Draw the triangle