本文整理匯總了Java中javax.media.opengl.GL.glGetDoublev方法的典型用法代碼示例。如果您正苦於以下問題：Java GL.glGetDoublev方法的具體用法？Java GL.glGetDoublev怎麽用？Java GL.glGetDoublev使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類javax.media.opengl.GL的用法示例。
在下文中一共展示了GL.glGetDoublev方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: getWorldCoordinates
import javax.media.opengl.GL; //導入方法依賴的package包/類
public static Location getWorldCoordinates(GL gl, GLU glu, Location screen, Location store) {
if (store == null) {
store = new Location(0,0,0);
}
// Modelview matrix
DoubleBuffer mvBuffer = DoubleBuffer.allocate(16);
gl.glGetDoublev(GL.GL_MODELVIEW_MATRIX, mvBuffer);
// Projection_matrix
DoubleBuffer prBuffer = DoubleBuffer.allocate(16);
gl.glGetDoublev(GL.GL_PROJECTION_MATRIX, prBuffer);
// Viewport matrix
IntBuffer vpBuffer = IntBuffer.allocate(16); // 4 is necessary
gl.glGetIntegerv(GL.GL_VIEWPORT, vpBuffer);
// 3d coordinates
DoubleBuffer result = DoubleBuffer.allocate(3);
glu.gluUnProject(screen.x,
screen.y,
screen.z,
mvBuffer,
prBuffer,
vpBuffer,
result);
store = new Location(result.get(0), result.get(1), result.get(2));
return store;
}
示例2: getScreenCoordinates
import javax.media.opengl.GL; //導入方法依賴的package包/類
public static Location getScreenCoordinates(GL gl, GLU glu, Location worldPosition, Location store) {
if (store == null) {
store = new Location(0,0,0);
}
// Modelview matrix
DoubleBuffer mvBuffer = DoubleBuffer.allocate(16);
gl.glGetDoublev(GL.GL_MODELVIEW_MATRIX, mvBuffer);
// Projection_matrix
DoubleBuffer prBuffer = DoubleBuffer.allocate(16);
gl.glGetDoublev(GL.GL_PROJECTION_MATRIX, prBuffer);
// Viewport matrix
IntBuffer vpBuffer = IntBuffer.allocate(16);
gl.glGetIntegerv(GL.GL_VIEWPORT, vpBuffer);
DoubleBuffer result = DoubleBuffer.allocate(3);
glu.gluProject(worldPosition.x,
worldPosition.y,
worldPosition.z,
mvBuffer,
prBuffer,
vpBuffer,
result);
store = new Location(result.get(0), result.get(1), result.get(2));
return store;
}