private Point3d computeWinCoord(
Canvas3D canvas,
RenderAtom ra,
Point2d winCoord,
Point3d objCoord,
Transform3D localToImagePlate) {
// Get local to Vworld transform
RenderMolecule rm = ra.renderMolecule;
if (rm == null) {
// removeRenderAtom() may set ra.renderMolecule to null
// in RenderBin before this renderer thread run.
return null;
}
// MT safe issue: We can't reference ra.renderMolecule below since
// RenderBin thread may set it to null anytime. Use rm instead.
Transform3D lvw = rm.localToVworld[rm.localToVworldIndex[NodeRetained.LAST_LOCAL_TO_VWORLD]];
Point3d clipCoord3 = new Point3d();
clipCoord3.set(objCoord);
Point4d clipCoord4 = new Point4d();
// Transform point from local coord. to clipping coord.
lvw.transform(clipCoord3);
canvas.vworldToEc.transform(clipCoord3);
canvas.projTrans.transform(clipCoord3, clipCoord4);
// clip check in Z
if ((clipCoord4.w <= 0.0) || (clipCoord4.z > clipCoord4.w) || (-clipCoord4.z > clipCoord4.w)) {
return null;
}
double invW = 1.0 / clipCoord4.w;
clipCoord3.x = clipCoord4.x * invW;
clipCoord3.y = clipCoord4.y * invW;
clipCoord3.z = clipCoord4.z * invW;
// Get Vworld to image plate Xform
canvas.getLastVworldToImagePlate(localToImagePlate);
// v' = vwip x lvw x v
// where v' = transformed vertex,
// lvw = local to Vworld Xform
// vwip = Vworld to Image plate Xform
// v = vertex
// Compute composite local to image plate Xform
localToImagePlate.mul(lvw);
// Transform the Raster's position from object to world coordinates
localToImagePlate.transform(objCoord);
// Get the window coordinates of this point
canvas.getPixelLocationFromImagePlate(objCoord, winCoord);
return clipCoord3;
}
// TODO -- Need to rethink. Might have to consider charTransform[] in returns pickInfo.
@Override
boolean intersect(
PickShape pickShape,
PickInfo pickInfo,
int flags,
Point3d iPnt,
GeometryRetained geom,
int geomIndex) {
Transform3D tempT3D = new Transform3D();
GeometryArrayRetained geo = null;
int sIndex = -1;
PickShape newPS;
double minDist = Double.MAX_VALUE;
double distance = 0.0;
Point3d closestIPnt = new Point3d();
for (int i = 0; i < numChars; i++) {
geo = geometryList[i];
if (geo != null) {
tempT3D.invert(charTransforms[i]);
newPS = pickShape.transform(tempT3D);
if (geo.intersect(newPS, pickInfo, flags, iPnt, geom, geomIndex)) {
if (flags == 0) {
return true;
}
distance = newPS.distance(iPnt);
if (distance < minDist) {
sIndex = i;
minDist = distance;
closestIPnt.set(iPnt);
}
}
}
}
if (sIndex >= 0) {
// We need to transform iPnt to the vworld to compute the actual distance.
// In this method we'll transform iPnt by its char. offset. Shape3D will
// do the localToVworld transform.
iPnt.set(closestIPnt);
charTransforms[sIndex].transform(iPnt);
return true;
}
return false;
}
@Override
void execute(
Canvas3D cv,
RenderAtom ra,
boolean isNonUniformScale,
boolean updateAlpha,
float alpha,
int screen,
boolean ignoreVertexColors) {
// Compute the offset position of the raster
// This has to be done at render time because we need access
// to the Canvas3D info
// Check if adjusted position needs to be computed
Point3d adjPos = new Point3d(); // Position of the Raster after adjusting for dstOffset
adjPos.set(position);
Point2d winCoord = new Point2d(); // Position of Raster in window coordinates
Transform3D localToImagePlate = new Transform3D(); // Local to Image plate transform
Point3d clipCoord = computeWinCoord(cv, ra, winCoord, adjPos, localToImagePlate);
// Test raster for out of bounds in Z.
if (clipCoord == null) {
return;
}
if (clipMode == Raster.CLIP_POSITION) {
// Do trivial reject test on Raster position.
if (!isRasterClipPositionInside(clipCoord)) {
return;
}
}
// Add the destination offset to the Raster position in window coordinates
winCoord.x += xDstOffset;
winCoord.y += yDstOffset;
// System.err.println("Step 2 : adjPos " + adjPos + " winCoord " + winCoord);
if ((type == Raster.RASTER_COLOR) || (type == Raster.RASTER_COLOR_DEPTH)) {
float devCoordZ = (float) (clipCoord.z * 0.5 - 0.5);
// Do textfill stuffs
if (texture != null) {
// setup Texture pipe.
cv.updateTextureForRaster(texture);
cv.textureFill(this, winCoord, devCoordZ, alpha);
// Restore texture pipe.
cv.restoreTextureBin();
}
}
if ((type == Raster.RASTER_DEPTH) || (type == Raster.RASTER_COLOR_DEPTH)) {
Point2i srcOffset = new Point2i(xSrcOffset, ySrcOffset);
if (clipMode == Raster.CLIP_IMAGE) {
clipImage(cv, ra, winCoord, srcOffset);
}
computeObjCoord(cv, winCoord, adjPos, localToImagePlate);
cv.executeRasterDepth(
cv.ctx,
(float) adjPos.x,
(float) adjPos.y,
(float) adjPos.z,
srcOffset.x,
srcOffset.y,
width,
height,
depthComponent.width,
depthComponent.height,
depthComponent.type,
((DepthComponentIntRetained) depthComponent).depthData);
}
}
@Override
synchronized void computeBoundingBox() {
Point3d l = new Point3d();
Point3d u = new Point3d();
Vector3f location = new Vector3f(this.position);
int i, k = 0, numTotal = 0;
double width = 0, height = 0;
Rectangle2D bounds;
// Reset bounds data
l.set(location);
u.set(location);
if (numChars != 0) {
// Set loop counters based on path type
if (path == Text3D.PATH_RIGHT || path == Text3D.PATH_UP) {
k = 0;
numTotal = numChars + 1;
} else if (path == Text3D.PATH_LEFT || path == Text3D.PATH_DOWN) {
k = 1;
numTotal = numChars;
// Reset bounds to bounding box if first character
bounds = glyphVecs[0].getVisualBounds();
u.x += bounds.getWidth();
u.y += bounds.getHeight();
}
for (i = 1; i < numTotal; i++, k++) {
width = glyphVecs[k].getLogicalBounds().getWidth();
bounds = glyphVecs[k].getVisualBounds();
// 'switch' could be outside loop with little hacking,
width += charSpacing;
height = bounds.getHeight();
switch (this.path) {
case Text3D.PATH_RIGHT:
u.x += (width);
if (u.y < (height + location.y)) {
u.y = location.y + height;
}
break;
case Text3D.PATH_LEFT:
l.x -= (width);
if (u.y < (height + location.y)) {
u.y = location.y + height;
}
break;
case Text3D.PATH_UP:
u.y += height;
if (u.x < (bounds.getWidth() + location.x)) {
u.x = location.x + bounds.getWidth();
}
break;
case Text3D.PATH_DOWN:
l.y -= height;
if (u.x < (bounds.getWidth() + location.x)) {
u.x = location.x + bounds.getWidth();
}
break;
}
}
// Handle string alignment. ALIGN_FIRST is handled by default
if (alignment != Text3D.ALIGN_FIRST) {
double cx = (u.x - l.x);
double cy = (u.y - l.y);
if (alignment == Text3D.ALIGN_CENTER) {
cx *= .5;
cy *= .5;
}
switch (path) {
case Text3D.PATH_RIGHT:
l.x -= cx;
u.x -= cx;
break;
case Text3D.PATH_LEFT:
l.x += cx;
u.x += cx;
break;
case Text3D.PATH_UP:
l.y -= cy;
u.y -= cy;
break;
case Text3D.PATH_DOWN:
l.y += cy;
u.y += cy;
break;
}
}
}
l.z = 0.0f;
if ((font3D == null) || (font3D.fontExtrusion == null)) {
u.z = l.z;
} else {
u.z = l.z + font3D.fontExtrusion.length;
}
}
/**
* Update per character transform based on Text3D location, per character size and path.
*
* <p>WARNING: Caller of this method must make sure SceneGraph is live, else exceptions may be
* thrown.
*/
final void updateTransformData() {
int i, k = 0, numTotal = 0;
double width = 0, height = 0;
Vector3f location = new Vector3f(this.position);
Rectangle2D bounds;
// Reset bounds data
lower.set(location);
upper.set(location);
charTransforms = new Transform3D[numChars];
for (i = 0; i < numChars; i++) {
charTransforms[i] = new Transform3D();
}
if (numChars != 0) {
charTransforms[0].set(location);
// Set loop counters based on path type
if (path == Text3D.PATH_RIGHT || path == Text3D.PATH_UP) {
k = 0;
numTotal = numChars + 1;
} else if (path == Text3D.PATH_LEFT || path == Text3D.PATH_DOWN) {
k = 1;
numTotal = numChars;
// Reset bounds to bounding box if first character
bounds = glyphVecs[0].getVisualBounds();
upper.x += bounds.getWidth();
upper.y += bounds.getHeight();
}
for (i = 1; i < numTotal; i++, k++) {
width = glyphVecs[k].getLogicalBounds().getWidth();
bounds = glyphVecs[k].getVisualBounds();
// 'switch' could be outside loop with little hacking,
width += charSpacing;
height = bounds.getHeight();
switch (this.path) {
case Text3D.PATH_RIGHT:
location.x += width;
upper.x += (width);
if (upper.y < (height + location.y)) {
upper.y = location.y + height;
}
break;
case Text3D.PATH_LEFT:
location.x -= width;
lower.x -= (width);
if (upper.y < (height + location.y)) {
upper.y = location.y + height;
}
break;
case Text3D.PATH_UP:
location.y += height;
upper.y += height;
if (upper.x < (bounds.getWidth() + location.x)) {
upper.x = location.x + bounds.getWidth();
}
break;
case Text3D.PATH_DOWN:
location.y -= height;
lower.y -= height;
if (upper.x < (bounds.getWidth() + location.x)) {
upper.x = location.x + bounds.getWidth();
}
break;
}
if (i < numChars) {
charTransforms[i].set(location);
}
}
// Handle string alignment. ALIGN_FIRST is handled by default
if (alignment != Text3D.ALIGN_FIRST) {
double cx = (upper.x - lower.x);
double cy = (upper.y - lower.y);
if (alignment == Text3D.ALIGN_CENTER) {
cx *= .5;
cy *= .5;
}
switch (path) {
case Text3D.PATH_RIGHT:
for (i = 0; i < numChars; i++) {
charTransforms[i].mat[3] -= cx;
}
lower.x -= cx;
upper.x -= cx;
break;
case Text3D.PATH_LEFT:
for (i = 0; i < numChars; i++) {
charTransforms[i].mat[3] += cx;
}
lower.x += cx;
upper.x += cx;
break;
case Text3D.PATH_UP:
for (i = 0; i < numChars; i++) {
charTransforms[i].mat[7] -= cy;
}
lower.y -= cy;
upper.y -= cy;
break;
case Text3D.PATH_DOWN:
for (i = 0; i < numChars; i++) {
charTransforms[i].mat[7] += cy;
}
lower.y += cy;
upper.y += cy;
break;
}
}
}
lower.z = 0.0f;
if ((font3D == null) || (font3D.fontExtrusion == null)) {
upper.z = lower.z;
} else {
upper.z = lower.z + font3D.fontExtrusion.length;
}
// update geoBounds
getBoundingBox(geoBounds);
}