void Circle3DOverlay::render(RenderArgs* args) {
if (!_visible) {
return; // do nothing if we're not visible
}
float alpha = getAlpha();
if (alpha == 0.0) {
return; // do nothing if our alpha is 0, we're not visible
}
const float FULL_CIRCLE = 360.0f;
const float SLICES = 180.0f; // The amount of segment to create the circle
const float SLICE_ANGLE = FULL_CIRCLE / SLICES;
//const int slices = 15;
xColor color = getColor();
const float MAX_COLOR = 255.0f;
glColor4f(color.red / MAX_COLOR, color.green / MAX_COLOR, color.blue / MAX_COLOR, alpha);
glDisable(GL_LIGHTING);
glm::vec3 position = getPosition();
glm::vec3 center = getCenter();
glm::vec2 dimensions = getDimensions();
glm::quat rotation = getRotation();
float glowLevel = getGlowLevel();
Glower* glower = NULL;
if (glowLevel > 0.0f) {
glower = new Glower(glowLevel);
}
glPushMatrix();
glTranslatef(position.x, position.y, position.z);
glm::vec3 axis = glm::axis(rotation);
glRotatef(glm::degrees(glm::angle(rotation)), axis.x, axis.y, axis.z);
glPushMatrix();
glm::vec3 positionToCenter = center - position;
glTranslatef(positionToCenter.x, positionToCenter.y, positionToCenter.z);
glScalef(dimensions.x, dimensions.y, 1.0f);
// Create the circle in the coordinates origin
float outerRadius = getOuterRadius();
float innerRadius = getInnerRadius(); // only used in solid case
float startAt = getStartAt();
float endAt = getEndAt();
glLineWidth(_lineWidth);
// for our overlay, is solid means we draw a ring between the inner and outer radius of the circle, otherwise
// we just draw a line...
if (getIsSolid()) {
glBegin(GL_QUAD_STRIP);
float angle = startAt;
float angleInRadians = glm::radians(angle);
glm::vec2 firstInnerPoint(cos(angleInRadians) * innerRadius, sin(angleInRadians) * innerRadius);
glm::vec2 firstOuterPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
glVertex2f(firstInnerPoint.x, firstInnerPoint.y);
glVertex2f(firstOuterPoint.x, firstOuterPoint.y);
while (angle < endAt) {
angleInRadians = glm::radians(angle);
glm::vec2 thisInnerPoint(cos(angleInRadians) * innerRadius, sin(angleInRadians) * innerRadius);
glm::vec2 thisOuterPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
glVertex2f(thisOuterPoint.x, thisOuterPoint.y);
glVertex2f(thisInnerPoint.x, thisInnerPoint.y);
angle += SLICE_ANGLE;
}
// get the last slice portion....
angle = endAt;
angleInRadians = glm::radians(angle);
glm::vec2 lastInnerPoint(cos(angleInRadians) * innerRadius, sin(angleInRadians) * innerRadius);
glm::vec2 lastOuterPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
glVertex2f(lastOuterPoint.x, lastOuterPoint.y);
glVertex2f(lastInnerPoint.x, lastInnerPoint.y);
glEnd();
} else {
if (getIsDashedLine()) {
glBegin(GL_LINES);
} else {
glBegin(GL_LINE_STRIP);
}
float angle = startAt;
float angleInRadians = glm::radians(angle);
glm::vec2 firstPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
glVertex2f(firstPoint.x, firstPoint.y);
while (angle < endAt) {
angle += SLICE_ANGLE;
angleInRadians = glm::radians(angle);
glm::vec2 thisPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
glVertex2f(thisPoint.x, thisPoint.y);
if (getIsDashedLine()) {
angle += SLICE_ANGLE / 2.0f; // short gap
angleInRadians = glm::radians(angle);
glm::vec2 dashStartPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
glVertex2f(dashStartPoint.x, dashStartPoint.y);
}
}
// get the last slice portion....
angle = endAt;
angleInRadians = glm::radians(angle);
glm::vec2 lastOuterPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
glVertex2f(lastOuterPoint.x, lastOuterPoint.y);
glEnd();
}
// draw our tick marks
// for our overlay, is solid means we draw a ring between the inner and outer radius of the circle, otherwise
// we just draw a line...
if (getHasTickMarks()) {
glBegin(GL_LINES);
// draw our major tick marks
if (getMajorTickMarksAngle() > 0.0f && getMajorTickMarksLength() != 0.0f) {
xColor color = getMajorTickMarksColor();
glColor4f(color.red / MAX_COLOR, color.green / MAX_COLOR, color.blue / MAX_COLOR, alpha);
float tickMarkAngle = getMajorTickMarksAngle();
float angle = startAt - fmod(startAt, tickMarkAngle) + tickMarkAngle;
float angleInRadians = glm::radians(angle);
float tickMarkLength = getMajorTickMarksLength();
float startRadius = (tickMarkLength > 0.0f) ? innerRadius : outerRadius;
float endRadius = startRadius + tickMarkLength;
while (angle <= endAt) {
angleInRadians = glm::radians(angle);
glm::vec2 thisPointA(cos(angleInRadians) * startRadius, sin(angleInRadians) * startRadius);
glm::vec2 thisPointB(cos(angleInRadians) * endRadius, sin(angleInRadians) * endRadius);
glVertex2f(thisPointA.x, thisPointA.y);
glVertex2f(thisPointB.x, thisPointB.y);
angle += tickMarkAngle;
}
}
// draw our minor tick marks
if (getMinorTickMarksAngle() > 0.0f && getMinorTickMarksLength() != 0.0f) {
xColor color = getMinorTickMarksColor();
glColor4f(color.red / MAX_COLOR, color.green / MAX_COLOR, color.blue / MAX_COLOR, alpha);
float tickMarkAngle = getMinorTickMarksAngle();
float angle = startAt - fmod(startAt, tickMarkAngle) + tickMarkAngle;
float angleInRadians = glm::radians(angle);
float tickMarkLength = getMinorTickMarksLength();
float startRadius = (tickMarkLength > 0.0f) ? innerRadius : outerRadius;
float endRadius = startRadius + tickMarkLength;
while (angle <= endAt) {
angleInRadians = glm::radians(angle);
glm::vec2 thisPointA(cos(angleInRadians) * startRadius, sin(angleInRadians) * startRadius);
glm::vec2 thisPointB(cos(angleInRadians) * endRadius, sin(angleInRadians) * endRadius);
glVertex2f(thisPointA.x, thisPointA.y);
glVertex2f(thisPointB.x, thisPointB.y);
angle += tickMarkAngle;
}
}
glEnd();
}
glPopMatrix();
glPopMatrix();
if (glower) {
delete glower;
}
}
void Circle3DOverlay::render(RenderArgs* args) {
if (!_visible) {
return; // do nothing if we're not visible
}
float alpha = getAlpha();
if (alpha == 0.0) {
return; // do nothing if our alpha is 0, we're not visible
}
// Create the circle in the coordinates origin
float outerRadius = getOuterRadius();
float innerRadius = getInnerRadius(); // only used in solid case
float startAt = getStartAt();
float endAt = getEndAt();
bool geometryChanged = (startAt != _lastStartAt || endAt != _lastEndAt ||
innerRadius != _lastInnerRadius || outerRadius != _lastOuterRadius);
const float FULL_CIRCLE = 360.0f;
const float SLICES = 180.0f; // The amount of segment to create the circle
const float SLICE_ANGLE = FULL_CIRCLE / SLICES;
//const int slices = 15;
xColor color = getColor();
const float MAX_COLOR = 255.0f;
glColor4f(color.red / MAX_COLOR, color.green / MAX_COLOR, color.blue / MAX_COLOR, alpha);
glDisable(GL_LIGHTING);
glm::vec3 position = getPosition();
glm::vec3 center = getCenter();
glm::vec2 dimensions = getDimensions();
glm::quat rotation = getRotation();
float glowLevel = getGlowLevel();
Glower* glower = NULL;
if (glowLevel > 0.0f) {
glower = new Glower(glowLevel);
}
glPushMatrix();
glTranslatef(position.x, position.y, position.z);
glm::vec3 axis = glm::axis(rotation);
glRotatef(glm::degrees(glm::angle(rotation)), axis.x, axis.y, axis.z);
glPushMatrix();
glm::vec3 positionToCenter = center - position;
glTranslatef(positionToCenter.x, positionToCenter.y, positionToCenter.z);
glScalef(dimensions.x, dimensions.y, 1.0f);
glLineWidth(_lineWidth);
auto geometryCache = DependencyManager::get<GeometryCache>();
// for our overlay, is solid means we draw a ring between the inner and outer radius of the circle, otherwise
// we just draw a line...
if (getIsSolid()) {
if (_quadVerticesID == GeometryCache::UNKNOWN_ID) {
_quadVerticesID = geometryCache->allocateID();
}
if (geometryChanged) {
QVector<glm::vec2> points;
float angle = startAt;
float angleInRadians = glm::radians(angle);
glm::vec2 firstInnerPoint(cos(angleInRadians) * innerRadius, sin(angleInRadians) * innerRadius);
glm::vec2 firstOuterPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
points << firstInnerPoint << firstOuterPoint;
while (angle < endAt) {
angleInRadians = glm::radians(angle);
glm::vec2 thisInnerPoint(cos(angleInRadians) * innerRadius, sin(angleInRadians) * innerRadius);
glm::vec2 thisOuterPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
points << thisOuterPoint << thisInnerPoint;
angle += SLICE_ANGLE;
}
// get the last slice portion....
angle = endAt;
angleInRadians = glm::radians(angle);
glm::vec2 lastInnerPoint(cos(angleInRadians) * innerRadius, sin(angleInRadians) * innerRadius);
glm::vec2 lastOuterPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
points << lastOuterPoint << lastInnerPoint;
geometryCache->updateVertices(_quadVerticesID, points);
}
geometryCache->renderVertices(GL_QUAD_STRIP, _quadVerticesID);
} else {
if (_lineVerticesID == GeometryCache::UNKNOWN_ID) {
_lineVerticesID = geometryCache->allocateID();
}
if (geometryChanged) {
QVector<glm::vec2> points;
float angle = startAt;
float angleInRadians = glm::radians(angle);
glm::vec2 firstPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
points << firstPoint;
while (angle < endAt) {
angle += SLICE_ANGLE;
angleInRadians = glm::radians(angle);
glm::vec2 thisPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
points << thisPoint;
if (getIsDashedLine()) {
angle += SLICE_ANGLE / 2.0f; // short gap
angleInRadians = glm::radians(angle);
glm::vec2 dashStartPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
points << dashStartPoint;
}
}
// get the last slice portion....
angle = endAt;
angleInRadians = glm::radians(angle);
glm::vec2 lastPoint(cos(angleInRadians) * outerRadius, sin(angleInRadians) * outerRadius);
points << lastPoint;
geometryCache->updateVertices(_lineVerticesID, points);
}
if (getIsDashedLine()) {
geometryCache->renderVertices(GL_LINES, _lineVerticesID);
} else {
geometryCache->renderVertices(GL_LINE_STRIP, _lineVerticesID);
}
}
// draw our tick marks
// for our overlay, is solid means we draw a ring between the inner and outer radius of the circle, otherwise
// we just draw a line...
if (getHasTickMarks()) {
if (_majorTicksVerticesID == GeometryCache::UNKNOWN_ID) {
_majorTicksVerticesID = geometryCache->allocateID();
}
if (_minorTicksVerticesID == GeometryCache::UNKNOWN_ID) {
_minorTicksVerticesID = geometryCache->allocateID();
}
if (geometryChanged) {
QVector<glm::vec2> majorPoints;
QVector<glm::vec2> minorPoints;
// draw our major tick marks
if (getMajorTickMarksAngle() > 0.0f && getMajorTickMarksLength() != 0.0f) {
float tickMarkAngle = getMajorTickMarksAngle();
float angle = startAt - fmod(startAt, tickMarkAngle) + tickMarkAngle;
float angleInRadians = glm::radians(angle);
float tickMarkLength = getMajorTickMarksLength();
float startRadius = (tickMarkLength > 0.0f) ? innerRadius : outerRadius;
float endRadius = startRadius + tickMarkLength;
while (angle <= endAt) {
angleInRadians = glm::radians(angle);
glm::vec2 thisPointA(cos(angleInRadians) * startRadius, sin(angleInRadians) * startRadius);
glm::vec2 thisPointB(cos(angleInRadians) * endRadius, sin(angleInRadians) * endRadius);
majorPoints << thisPointA << thisPointB;
angle += tickMarkAngle;
}
}
// draw our minor tick marks
if (getMinorTickMarksAngle() > 0.0f && getMinorTickMarksLength() != 0.0f) {
float tickMarkAngle = getMinorTickMarksAngle();
float angle = startAt - fmod(startAt, tickMarkAngle) + tickMarkAngle;
float angleInRadians = glm::radians(angle);
float tickMarkLength = getMinorTickMarksLength();
float startRadius = (tickMarkLength > 0.0f) ? innerRadius : outerRadius;
float endRadius = startRadius + tickMarkLength;
while (angle <= endAt) {
angleInRadians = glm::radians(angle);
glm::vec2 thisPointA(cos(angleInRadians) * startRadius, sin(angleInRadians) * startRadius);
glm::vec2 thisPointB(cos(angleInRadians) * endRadius, sin(angleInRadians) * endRadius);
minorPoints << thisPointA << thisPointB;
angle += tickMarkAngle;
}
}
geometryCache->updateVertices(_majorTicksVerticesID, majorPoints);
geometryCache->updateVertices(_minorTicksVerticesID, minorPoints);
}
xColor majorColor = getMajorTickMarksColor();
glColor4f(majorColor.red / MAX_COLOR, majorColor.green / MAX_COLOR, majorColor.blue / MAX_COLOR, alpha);
geometryCache->renderVertices(GL_LINES, _majorTicksVerticesID);
xColor minorColor = getMinorTickMarksColor();
glColor4f(minorColor.red / MAX_COLOR, minorColor.green / MAX_COLOR, minorColor.blue / MAX_COLOR, alpha);
geometryCache->renderVertices(GL_LINES, _minorTicksVerticesID);
}
glPopMatrix();
glPopMatrix();
if (geometryChanged) {
_lastStartAt = startAt;
_lastEndAt = endAt;
_lastInnerRadius = innerRadius;
_lastOuterRadius = outerRadius;
}
if (glower) {
delete glower;
}
}
