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Java GL2.glTranslatef方法代碼示例

本文整理匯總了Java中javax.media.opengl.GL2.glTranslatef方法的典型用法代碼示例。如果您正苦於以下問題：Java GL2.glTranslatef方法的具體用法？Java GL2.glTranslatef怎麽用？Java GL2.glTranslatef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.GL2的用法示例。


在下文中一共展示了GL2.glTranslatef方法的15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: drawVertex

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private Vector3f drawVertex(Vector3f vert, double size, float[] color, GL2 gl, GLUT glut) {
    gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_AMBIENT, color, 0);
    gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_DIFFUSE, color, 0);
    gl.glMaterialf(GL.GL_FRONT_AND_BACK, GL2.GL_SHININESS, 10);

    gl.glPushAttrib(GL2.GL_LIGHTING_BIT);
    gl.glDisable(GL2.GL_TEXTURE_2D);
    gl.glEnable(GL2.GL_LIGHTING);

    gl.glPushMatrix();
    gl.glTranslatef(vert.getX(), vert.getY(), vert.getZ());

    glut.glutSolidSphere(size, 20, 20);
    gl.glPopMatrix();

    gl.glEnable(GL2.GL_TEXTURE_2D);
    gl.glDisable(GL2.GL_LIGHTING);
    gl.glPopAttrib();

    return vert;
}
開發者ID:Fidentis，項目名稱:Analyst，代碼行數:22，代碼來源:PApainting.java

示例2: drawCylinder

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private void drawCylinder(Vector3f from, Vector3f to, GL2 gl, GLUT glut) {
    Vector3f zAxis = new Vector3f(0, 0, 1);
    Vector3f vector = new Vector3f(to.x - from.x, to.y - from.y, to.z - from.z);
    float length = vector.length();
    vector.normalize();
    float angle = zAxis.angle(vector);
    Vector3f axis = new Vector3f();
    axis.cross(zAxis, vector);
    float convert = (float) (180f / Math.PI);

    gl.glPushMatrix();

    gl.glTranslatef(from.x, from.y, from.z);
    gl.glRotatef(angle * convert, axis.x, axis.y, axis.z);
    glut.glutSolidCylinder(info.getPointSize() / 4.5, length - info.getPointSize(), 20, 20);
    gl.glPopMatrix();

}
開發者ID:Fidentis，項目名稱:Analyst，代碼行數:19，代碼來源:PApainting.java

示例3: drawCylinder

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private void drawCylinder(GLUT glut, GL2 gl, Vector3f from, Vector3f to) {

        Vector3f zAxis = new Vector3f(0, 0, 1);
        Vector3f vector1 = new Vector3f(to.x - from.x, to.y - from.y, to.z - from.z);
        float length = vector1.length();
        vector1.normalize();
        float angle = zAxis.angle(vector1);
        Vector3f axis = new Vector3f();
        axis.cross(zAxis, vector1);
        float convert = (float) (180f / Math.PI);

        gl.glPushMatrix();
        gl.glTranslatef(from.x, from.y, from.z);
        gl.glRotatef(angle * convert, axis.x, axis.y, axis.z);
        glut.glutSolidCylinder(0.5f, length - 0.5f, 20, 5);
        //glut.glutSolidCylinder(0.5f, 10, 20, 5);
        gl.glPopMatrix();

    }
開發者ID:Fidentis，項目名稱:Analyst，代碼行數:20，代碼來源:HDpainting.java

示例4: transformViewport

import javax.media.opengl.GL2; //導入方法依賴的package包/類
public void transformViewport(GL2 gl, Vec2 center) {
  Vec2 e = viewportTransform.getExtents();
  Vec2 vc = viewportTransform.getCenter();
  Mat22 vt = viewportTransform.getMat22Representation();

  int f = viewportTransform.isYFlip() ? -1 : 1;
  mat[0] = vt.ex.x;
  mat[4] = vt.ey.x;
  // mat[8] = 0;
  mat[12] = e.x;
  mat[1] = f * vt.ex.y;
  mat[5] = f * vt.ey.y;
  // mat[9] = 0;
  mat[13] = e.y;
  // mat[2] = 0;
  // mat[6] = 0;
  // mat[10] = 1;
  // mat[14] = 0;
  // mat[3] = 0;
  // mat[7] = 0;
  // mat[11] = 0;
  // mat[15] = 1;

  gl.glMultMatrixf(mat, 0);
  gl.glTranslatef(center.x - vc.x, center.y - vc.y, 0);
}
開發者ID:unktomi，項目名稱:form-follows-function，代碼行數:27，代碼來源:JoglDebugDraw.java

示例5: transformViewport

import javax.media.opengl.GL2; //導入方法依賴的package包/類
public void transformViewport(GL2 gl, Vec2 center) {
    Vec2 e = viewportTransform.getExtents();
    Vec2 vc = viewportTransform.getCenter();
    Mat22 vt = viewportTransform.getMat22Representation();
    
    int f = viewportTransform.isYFlip() ? -1 : 1;
    mat[0] = vt.ex.x;
    mat[4] = vt.ey.x;
    // mat[8] = 0;
    mat[12] = e.x;
    mat[1] = f * vt.ex.y;
    mat[5] = f * vt.ey.y;
    // mat[9] = 0;
    mat[13] = e.y;
    // mat[2] = 0;
    // mat[6] = 0;
    // mat[10] = 1;
    // mat[14] = 0;
    // mat[3] = 0;
    // mat[7] = 0;
    // mat[11] = 0;
    // mat[15] = 1;

    gl.glMultMatrixf(mat, 0);
    gl.glTranslatef(center.x - vc.x, center.y - vc.y, 0);
}
開發者ID:unktomi，項目名稱:form-follows-function，代碼行數:27，代碼來源:JoglDebugDraw.java

示例6: displace

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 *
 * @param openGl
 */
public void displace(final GL2 openGl) {
    openGl.glPushMatrix();
    openGl.glTranslatef(position[0], position[1], position[2]);
    xAxis.rotateAround(openGl);
    yAxis.rotateAround(openGl);
    zAxis.rotateAround(openGl);

}
開發者ID:Fidentis，項目名稱:Analyst，代碼行數:13，代碼來源:MeshDisplacment.java

示例7: drawArrow

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private void drawArrow(Vector3f from, Vector3f to, float[] color, GL2 gl, GLUT glut) {
    Vector3f zAxis = new Vector3f(0, 0, 1);
    Vector3f vector = new Vector3f(to.x - from.x, to.y - from.y, to.z - from.z);
    float length = vector.length();
    vector.normalize();
    float angle = zAxis.angle(vector);
    Vector3f axis = new Vector3f();
    axis.cross(zAxis, vector);
    float convert = (float) (180f / Math.PI);

    gl.glPushAttrib(GL2.GL_LIGHTING_BIT);
    gl.glDisable(GL2.GL_TEXTURE_2D);
    gl.glEnable(GL2.GL_LIGHTING);

    gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_AMBIENT, color, 0);
    gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_DIFFUSE, color, 0);
    gl.glMaterialf(GL.GL_FRONT_AND_BACK, GL2.GL_SHININESS, 10);

    gl.glPushMatrix();

    gl.glTranslatef(from.x, from.y, from.z);
    gl.glRotatef(angle * convert, axis.x, axis.y, axis.z);
    glut.glutSolidCylinder(info.getPointSize() / 3, length - info.getPointSize(), 20, 20);
    gl.glTranslatef(0, 0, length - info.getPointSize());
    glut.glutSolidCone(info.getPointSize(), info.getPointSize(), 20, 20);

    gl.glPopMatrix();

    gl.glEnable(GL2.GL_TEXTURE_2D);
    gl.glDisable(GL2.GL_LIGHTING);
    gl.glPopAttrib();
}
開發者ID:Fidentis，項目名稱:Analyst，代碼行數:33，代碼來源:PApainting.java

示例8: setupCamera

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
public void setupCamera(GL2 gl, GLU glu, float x, float y, float z,
		int width, int height) {

	if(state != null) {
		// Change to projection matrix.
		gl.glMatrixMode(GL2.GL_PROJECTION);
		gl.glLoadIdentity();

		gl.glViewport(0, 0, width, height);

		FloatBoundingBox bbox = state.getOrthogonalBBox();
		float glWidth = Math.abs(bbox.getUpperRight().getX()
				- bbox.getUpperLeft().getX());
		float glHeight = Math.abs(bbox.getUpperRight().getY()
				- bbox.getLowerRight().getY());

		FloatVector3D glCenter = state.getPosition();
		
		gl.glOrthof(glCenter.getX() - glWidth / 2.0f, glCenter.getX() + glWidth
				/ 2.0f, glCenter.getY() - glHeight / 2.0f, glCenter.getY()
				+ glHeight / 2.0f, -10000, 10000);
		
		gl.glTranslatef(glCenter.getX(), glCenter.getY(), 0);
		gl.glRotatef(state.getRotation().getX(), 1, 0, 0);
		gl.glRotatef(state.getRotation().getZ(), 0, 0, 1);
		gl.glTranslatef(-glCenter.getX(), -glCenter.getY(), 0);
		
		// Change back to model view matrix.
		gl.glMatrixMode(GL2.GL_MODELVIEW);
		gl.glLoadIdentity();
	}
}
開發者ID:johb，項目名稱:GAIA，代碼行數:34，代碼來源:Mode2D.java

示例9: render

import javax.media.opengl.GL2; //導入方法依賴的package包/類
public void render(GL2 gl) {
	
	// Create the credits texture if not done yet:
	if(creditsTexture == null) {
		createTexture();
	}
	
	if(creditsTexture != null) {
		// Activate alpha:
		gl.glEnable(GL2.GL_BLEND);
		gl.glBlendFunc(GL2.GL_SRC_ALPHA, GL2.GL_ONE_MINUS_SRC_ALPHA);
		
		// Bind the texture for use:
		creditsTexture.bind(gl);
		
		// The textures 2D-coordinates:
		TextureCoords texCoords = creditsTexture.getImageTexCoords();
		
		// Backup current matrix:
		gl.glPushMatrix();
		gl.glLoadIdentity();
		
		// Apply transformation:
		gl.glRotatef(rotation, 1, 0, 0);
		gl.glTranslatef(0, -2, position);
		gl.glRotatef(-90, 1, 0, 0);
		
		// Draw vertices and pass uv-coords.
		gl.glBegin(GL2.GL_QUADS);
		gl.glTexCoord2f(texCoords.right(), texCoords.top());
		gl.glVertex3f(CREDITS_PANE_WIDTH/2, CREDITS_PANE_HEIGHT/2, 0);
		gl.glTexCoord2f(texCoords.left(), texCoords.top());
		gl.glVertex3f(-CREDITS_PANE_WIDTH/2, CREDITS_PANE_HEIGHT/2, 0);
		gl.glTexCoord2f(texCoords.left(), texCoords.bottom());
		gl.glVertex3f(-CREDITS_PANE_WIDTH/2, -CREDITS_PANE_HEIGHT/2, 0);
		gl.glTexCoord2f(texCoords.right(), texCoords.bottom());
		gl.glVertex3f(CREDITS_PANE_WIDTH/2, -CREDITS_PANE_HEIGHT/2, 0);
		gl.glEnd();
		
		// Restore matrix:
		gl.glPopMatrix();
	}
}
開發者ID:johb，項目名稱:GAIA，代碼行數:44，代碼來源:Credits.java

示例10: draw

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
public void draw(GL2 gl, float height) {
	// Update and fetch texture.
	if (adapter.toDraw()) {
		adapter.bindTexture(gl);
		Texture tex = adapter.getTexture();
		
		if (tex != null) {
			gl.glBlendFunc(GL2.GL_SRC_ALPHA, GL2.GL_ONE_MINUS_SRC_ALPHA);
			tex.bind(gl);
			
			TextureCoords texCoords = tex.getImageTexCoords();
			
			
			FloatBoundingBox box = adapter.getDrawBox();
			FloatVector3D upperLeft = box.getUpperLeft();
			FloatVector3D upperRight = box.getUpperRight();
			FloatVector3D lowerLeft = box.getLowerLeft();
			FloatVector3D lowerRight = box.getLowerRight();
			
			gl.glMatrixMode(GL2.GL_PROJECTION);
			gl.glLoadIdentity();
			gl.glOrthof(-1, 1, 
						-1, 1, 
						-10000, 10000);
			
			gl.glDisable(GL2.GL_DEPTH_TEST);
			
			gl.glMatrixMode(GL2.GL_MODELVIEW);
			
			// Lift the x-y-pane up:
			gl.glTranslatef(0, 0, height);
			
			// Draw texture.
			gl.glBegin(GL2.GL_QUADS);
			gl.glTexCoord2f(texCoords.left(), texCoords.top());
			gl.glVertex3f(upperLeft.getX(), upperLeft.getY(), 0.0f);
			gl.glTexCoord2f(texCoords.left(), texCoords.bottom());
			gl.glVertex3f(lowerLeft.getX(), lowerLeft.getY(), 0.0f);
			gl.glTexCoord2f(texCoords.right(), texCoords.bottom());
			gl.glVertex3f(lowerRight.getX(), lowerRight.getY(), 0.0f);
			gl.glTexCoord2f(texCoords.right(), texCoords.top());
			gl.glVertex3f(upperRight.getX(), upperRight.getY(), 0.0f);
			gl.glEnd();
		}
	}
	
	// Draw next layer if available.
	if (this.hasNextLayer()) {
		this.getNextLayer().draw(gl, height + HEIGHT_GAP);			
	}
}
開發者ID:johb，項目名稱:GAIA，代碼行數:53，代碼來源:WeatherLayer.java

示例11: draw

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 * Draws all tiles available for the current view. Also all OpenGL-specific
 * work in the adapter must be performed here. To accomplish this
 * <code>performGLCalls()</code> is called.
 */
@Override
public void draw(GL2 gl, float height) {
	if (adapter != null) {

		// Create outstanding textures.
		adapter.performGLCalls(gl);

		Collection<GLResource> toDraw = adapter.getGLResources();
		for (GLResource current : toDraw) {
			// Get texture.
			Texture tex = adapter.getTexture(current.getKey());

			// Bind texture.
			if (tex != null) {
				tex.bind(gl);
				
				// Vertices to draw.
				FloatBoundingBox box = current.getBox();
				FloatVector3D[] vertices = box.getCornersCounterClockwise();
				// Tex coords.
				TextureCoords texCoords = tex.getImageTexCoords();
				
				// Backup the current Model-View-Matrix:
				gl.glPushMatrix();
				// Lift the x-y-pane up:
				gl.glTranslatef(0, 0, height);
				
				// Draw vertices and pass tex coords.
				gl.glBegin(GL2.GL_QUADS);
				gl.glTexCoord2f(texCoords.right(), texCoords.top());
				gl.glVertex3f(vertices[0].getX(), vertices[0].getY(), 0);
				gl.glTexCoord2f(texCoords.left(), texCoords.top());
				gl.glVertex3f(vertices[1].getX(), vertices[1].getY(), 0);
				gl.glTexCoord2f(texCoords.left(), texCoords.bottom());
				gl.glVertex3f(vertices[2].getX(), vertices[2].getY(), 0);
				gl.glTexCoord2f(texCoords.right(), texCoords.bottom());
				gl.glVertex3f(vertices[3].getX(), vertices[3].getY(), 0);
				gl.glEnd();
				
				// Restore the old matrix:
				gl.glPopMatrix();
			}
		}
	}
	
	// Draw next layer.
	if (this.hasNextLayer()) {
		this.getNextLayer().draw(gl, height + HEIGHT_GAP);
	}

}
開發者ID:johb，項目名稱:GAIA，代碼行數:57，代碼來源:TileLayer.java

示例12: draw

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
public void draw(GL2 gl, float height) {
	
	// If not done yet, invoke the adapters initialization:
	if(!adapterInitialized) {
		adapter.performGLInit(gl);
		adapterInitialized = true;
	}
	
	// Perform all the necessary OpenGL-stuff:
	adapter.performGLCalls(gl);
	
	// Update and fetch texture.
	Texture tex = adapter.getTexture(CopyrightAdapter.COPYRIGHT_TEXTURE_KEY);
	if (tex != null) {
		gl.glBlendFunc(GL2.GL_SRC_ALPHA, GL2.GL_ONE_MINUS_SRC_ALPHA);
		tex.bind(gl);
		
		TextureCoords texCoords = tex.getImageTexCoords();
		
		FloatBoundingBox box = adapter.getDrawBox();
		if(box != null) {
			FloatVector3D upperLeft = box.getUpperLeft();
			FloatVector3D upperRight = box.getUpperRight();
			FloatVector3D lowerLeft = box.getLowerLeft();
			FloatVector3D lowerRight = box.getLowerRight();
			
			gl.glMatrixMode(GL2.GL_PROJECTION);
			gl.glLoadIdentity();
			gl.glOrthof(-1, 1, 
						-1, 1, 
						-10000, 10000);
			
			gl.glDisable(GL2.GL_DEPTH_TEST);
			
			gl.glMatrixMode(GL2.GL_MODELVIEW);
			
			// Lift the x-y-pane up:
			gl.glTranslatef(0, 0, height);
			
			// Draw texture.
			gl.glBegin(GL2.GL_QUADS);
			gl.glTexCoord2f(texCoords.left(), texCoords.top());
			gl.glVertex3f(upperLeft.getX(), upperLeft.getY(), 0.0f);
			gl.glTexCoord2f(texCoords.left(), texCoords.bottom());
			gl.glVertex3f(lowerLeft.getX(), lowerLeft.getY(), 0.0f);
			gl.glTexCoord2f(texCoords.right(), texCoords.bottom());
			gl.glVertex3f(lowerRight.getX(), lowerRight.getY(), 0.0f);
			gl.glTexCoord2f(texCoords.right(), texCoords.top());
			gl.glVertex3f(upperRight.getX(), upperRight.getY(), 0.0f);
			gl.glEnd();
		}
	}
	
	// Draw next layer.
	if (this.hasNextLayer()) {
		this.getNextLayer().draw(gl, height + HEIGHT_GAP);
	}
}
開發者ID:johb，項目名稱:GAIA，代碼行數:60，代碼來源:CopyrightLayer.java

示例13: draw

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 * Draws all Wikipedia-POIs available for the current view. Also all
 * OpenGL-specific work in the adapter must be performed here.
 */
@Override
public void draw(GL2 gl, float height) {
	WikipediaManager wikiManager = (WikipediaManager) ResourceMaster.getInstance().getResourceManager("Wikipedia");
	
	if (wikiManager.isEnabled() && adapter != null && gl != null) {
		// Check if the adapter was already initialized.
		// This must be done from the OpenGl-thread:
		if (!adapterInitialized) {
			adapter.performGLInit(gl);
		}

		// Do further processing in the OpenGL-context:
		adapter.performGLCalls(gl);

		// Get the texture querying with the default key:
		Texture texture = adapter
				.getTexture(WikipediaAdapter.WIKIPEDIA_TEXTURE_KEY);

		if (texture != null) {

			// The textures 2D-coordinates:
			TextureCoords texCoords = texture.getImageTexCoords();

			gl.glEnable(GL2.GL_BLEND);
			gl.glBlendFunc(GL2.GL_SRC_ALPHA, GL2.GL_ONE_MINUS_SRC_ALPHA);
			// Bind the texture for use with every marker to draw:
			texture.bind(gl);

			// Iterate all markers already converted into GL-coordinates:
			Collection<GLResource> glResources = adapter.getGLResources();
			for (GLResource current : glResources) {

				// Vertices to draw:
				FloatBoundingBox box = current.getBox();
				FloatVector3D[] vertices = box.getCornersCounterClockwise();

				// Backup the current Model-View-Matrix:
				gl.glPushMatrix();
				// Lift the x-y-pane up:
				gl.glTranslatef(0, 0, height);
				
				// Draw vertices and pass uv-coords.
				gl.glBegin(GL2.GL_QUADS);
				gl.glTexCoord2f(texCoords.right(), texCoords.top());
				gl.glVertex3f(vertices[0].getX(), vertices[0].getY(), 0);
				gl.glTexCoord2f(texCoords.left(), texCoords.top());
				gl.glVertex3f(vertices[1].getX(), vertices[1].getY(), 0);
				gl.glTexCoord2f(texCoords.left(), texCoords.bottom());
				gl.glVertex3f(vertices[2].getX(), vertices[2].getY(), 0);
				gl.glTexCoord2f(texCoords.right(), texCoords.bottom());
				gl.glVertex3f(vertices[3].getX(), vertices[3].getY(), 0);
				gl.glEnd();
				
				// Restore the old matrix:
				gl.glPopMatrix();
			}
		}
	}

	// Draw next layer.
	if (this.hasNextLayer()) {
		this.getNextLayer().draw(gl, height + HEIGHT_GAP);
	}
}
開發者ID:johb，項目名稱:GAIA，代碼行數:69，代碼來源:WikipediaLayer.java

示例14: draw

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 * Draws all POIs available for the current view. Also all OpenGL-specific
 * work in the adapter must be performed here.
 */
@Override
public void draw(GL2 gl, float height) {
	if (adapter != null && gl != null) {
		// Check if the adapter was already initialized.
		// This must be done from the OpenGl-thread:
		if (!adapterInitialized) {
			adapter.performGLInit(gl);
		}

		// Do further processing in the OpenGL-context:
		adapter.performGLCalls(gl);

		// Get the texture querying with the default key:
		Texture texture = adapter
				.getTexture(MarkerAdapter.MARKER_TEXTURE_KEY);

		if (texture != null) {

			// The textures 2D-coordinates:
			TextureCoords texCoords = texture.getImageTexCoords();

			gl.glEnable(GL2.GL_BLEND);
			gl.glBlendFunc(GL2.GL_SRC_ALPHA, GL2.GL_ONE_MINUS_SRC_ALPHA);
			// Bind the texture for use with every marker to draw:
			texture.bind(gl);

			// Iterate all markers already converted into GL-coordinates:
			Collection<GLResource> glResources = adapter.getGLResources();
			for (GLResource current : glResources) {

				// Vertices to draw:
				FloatBoundingBox box = current.getBox();
				FloatVector3D[] vertices = box.getCornersCounterClockwise();

				// Backup the current Model-View-Matrix:
				gl.glPushMatrix();
				// Lift the x-y-pane up:
				gl.glTranslatef(0, 0, height);
				
				// Draw vertices and pass uv-coords.
				gl.glBegin(GL2.GL_QUADS);
				gl.glTexCoord2f(texCoords.right(), texCoords.top());
				gl.glVertex3f(vertices[0].getX(), vertices[0].getY(), 0);
				gl.glTexCoord2f(texCoords.left(), texCoords.top());
				gl.glVertex3f(vertices[1].getX(), vertices[1].getY(), 0);
				gl.glTexCoord2f(texCoords.left(), texCoords.bottom());
				gl.glVertex3f(vertices[2].getX(), vertices[2].getY(), 0);
				gl.glTexCoord2f(texCoords.right(), texCoords.bottom());
				gl.glVertex3f(vertices[3].getX(), vertices[3].getY(), 0);
				gl.glEnd();
				
				// Restore the old matrix:
				gl.glPopMatrix();
			}
		}
	}

	// Draw next layer.
	if (this.hasNextLayer()) {
		this.getNextLayer().draw(gl, height + HEIGHT_GAP);
	}
}
開發者ID:johb，項目名稱:GAIA，代碼行數:67，代碼來源:MarkerLayer.java

示例15: draw

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
public void draw(GL2 gl, float height) {
	
	// If not done yet, invoke the adapters initialization:
	if(!adapterInitialized) {
		adapter.performGLInit(gl);
	}
	
	// Perform all the necessary OpenGL-stuff:
	adapter.performGLCalls(gl);
	
	// Update and fetch texture.
	Texture tex = adapter.getTexture(CompassAdapter.COMPASS_TEXTURE_KEY);
	if (tex != null) {
		gl.glBlendFunc(GL2.GL_SRC_ALPHA, GL2.GL_ONE_MINUS_SRC_ALPHA);
		tex.bind(gl);
		
		TextureCoords texCoords = tex.getImageTexCoords();
		
		FloatBoundingBox box = adapter.getDrawBox();
		FloatVector3D upperLeft = box.getUpperLeft();
		FloatVector3D upperRight = box.getUpperRight();
		FloatVector3D lowerLeft = box.getLowerLeft();
		FloatVector3D lowerRight = box.getLowerRight();
		
		gl.glMatrixMode(GL2.GL_PROJECTION);
		gl.glLoadIdentity();
		gl.glOrthof(-1, 1, 
					-1, 1, 
					-10000, 10000);
		
		gl.glDisable(GL2.GL_DEPTH_TEST);
		
		gl.glMatrixMode(GL2.GL_MODELVIEW);
		
		// Lift the x-y-pane up:
		gl.glTranslatef(0, 0, height);
		
		// Draw texture.
		gl.glBegin(GL2.GL_QUADS);
		gl.glTexCoord2f(texCoords.left(), texCoords.top());
		gl.glVertex3f(upperLeft.getX(), upperLeft.getY(), 0.0f);
		gl.glTexCoord2f(texCoords.left(), texCoords.bottom());
		gl.glVertex3f(lowerLeft.getX(), lowerLeft.getY(), 0.0f);
		gl.glTexCoord2f(texCoords.right(), texCoords.bottom());
		gl.glVertex3f(lowerRight.getX(), lowerRight.getY(), 0.0f);
		gl.glTexCoord2f(texCoords.right(), texCoords.top());
		gl.glVertex3f(upperRight.getX(), upperRight.getY(), 0.0f);
		gl.glEnd();
	}
	
	// Draw next layer.
	if (this.hasNextLayer()) {
		this.getNextLayer().draw(gl, height + HEIGHT_GAP);
	}
}
開發者ID:johb，項目名稱:GAIA，代碼行數:57，代碼來源:CompassLayer.java


注：本文中的javax.media.opengl.GL2.glTranslatef方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。