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Java MathUtils.cos方法代码示例

本文整理汇总了Java中org.jbox2d.common.MathUtils.cos方法的典型用法代码示例。如果您正苦于以下问题：Java MathUtils.cos方法的具体用法？Java MathUtils.cos怎么用？Java MathUtils.cos使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.jbox2d.common.MathUtils的用法示例。


在下文中一共展示了MathUtils.cos方法的13个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: synchronizeFixtures

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
protected final void synchronizeFixtures() {
  final Transform xf1 = pxf;
  // xf1.position = m_sweep.c0 - Mul(xf1.R, m_sweep.localCenter);

  // xf1.q.set(m_sweep.a0);
  // Rot.mulToOutUnsafe(xf1.q, m_sweep.localCenter, xf1.p);
  // xf1.p.mulLocal(-1).addLocal(m_sweep.c0);
  // inlined:
  xf1.q.s = MathUtils.sin(m_sweep.a0);
  xf1.q.c = MathUtils.cos(m_sweep.a0);
  xf1.p.x = m_sweep.c0.x - xf1.q.c * m_sweep.localCenter.x + xf1.q.s * m_sweep.localCenter.y;
  xf1.p.y = m_sweep.c0.y - xf1.q.s * m_sweep.localCenter.x - xf1.q.c * m_sweep.localCenter.y;
  // end inline

  for (Fixture f = m_fixtureList; f != null; f = f.m_next) {
    f.synchronize(m_world.m_contactManager.m_broadPhase, xf1, m_xf);
  }
}
开发者ID:jfcameron，项目名称:G2Dj，代码行数:19，代码来源:Body.java

示例2: synchronizeTransform

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
public final void synchronizeTransform() {
	// m_xf.R.set(m_sweep.a);
	//
	// //m_xf.position = m_sweep.c - Mul(m_xf.R, m_sweep.localCenter);
	// Mat22.mulToOut(m_xf.R, m_sweep.localCenter, m_xf.position);
	// m_xf.position.mulLocal(-1).addLocal(m_sweep.c);
	
	final float c = MathUtils.cos(m_sweep.a), s = MathUtils.sin(m_sweep.a);
	m_xf.R.col1.x = c;
	m_xf.R.col2.x = -s;
	m_xf.R.col1.y = s;
	m_xf.R.col2.y = c;
	m_xf.position.x = m_xf.R.col1.x * m_sweep.localCenter.x + m_xf.R.col2.x * m_sweep.localCenter.y;
	m_xf.position.y = m_xf.R.col1.y * m_sweep.localCenter.x + m_xf.R.col2.y * m_sweep.localCenter.y;
	m_xf.position.x *= (float) (-1);
	m_xf.position.y *= (float) (-1);
	m_xf.position.x += m_sweep.c.x;
	m_xf.position.y += m_sweep.c.y;
}
开发者ID:mleoking，项目名称:PhET，代码行数:20，代码来源:Body.java

示例3: synchronizeTransform

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
public final void synchronizeTransform() {
	// m_xf.R.set(m_sweep.a);
	//
	// //m_xf.position = m_sweep.c - Mul(m_xf.R, m_sweep.localCenter);
	// Mat22.mulToOut(m_xf.R, m_sweep.localCenter, m_xf.position);
	// m_xf.position.mulLocal(-1).addLocal(m_sweep.c);
	
   final float c = MathUtils.cos(m_sweep.a), s = MathUtils.sin(m_sweep.a);
   m_xf.R.m11 = c;
   m_xf.R.m21 = -s;
   m_xf.R.m12 = s;
   m_xf.R.m22 = c;
   m_xf.position.x = m_xf.R.m11 * m_sweep.localCenter.x + m_xf.R.m21 * m_sweep.localCenter.y;
   m_xf.position.y = m_xf.R.m12 * m_sweep.localCenter.x + m_xf.R.m22 * m_sweep.localCenter.y;
   m_xf.position.x *= -1f;
   m_xf.position.y *= -1f;
   m_xf.position.x += m_sweep.c.x;
   m_xf.position.y += m_sweep.c.y;
}
开发者ID:fredsa，项目名称:forplay，代码行数:20，代码来源:Body.java

示例4: drawCircle

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
@Override
public void drawCircle(Vec2 center, float radius, Color3f color) {
    System.err.println("drawCircle: "+center +", "+radius+", "+color);
  GL2 gl = panel.getGL().getGL2();
  gl.glPushMatrix();
  transformViewport(gl, zero);
  float theta = 2 * MathUtils.PI / NUM_CIRCLE_POINTS;
  float c = MathUtils.cos(theta);
  float s = MathUtils.sin(theta);
  float x = radius;
  float y = 0;
  float cx = center.x;
  float cy = center.y;
  gl.glBegin(GL2.GL_LINE_LOOP);
  gl.glColor4f(color.x, color.y, color.z, 1);
  for (int i = 0; i < NUM_CIRCLE_POINTS; i++) {
    gl.glVertex3f(x + cx, y + cy, 0);
    // apply the rotation matrix
    float temp = x;
    x = c * x - s * y;
    y = s * temp + c * y;
  }
  gl.glEnd();
  gl.glPopMatrix();
}
开发者ID:unktomi，项目名称:form-follows-function，代码行数:26，代码来源:JoglDebugDraw.java

示例5: drawCircle

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
@Override
    public void drawCircle(Vec2 center, float radius, Color3f color) {
    //GL2 gl = panel.getGL().getGL2();
    gl.glPushMatrix();
    transformViewport(gl, zero);
    float theta = 2 * MathUtils.PI / NUM_CIRCLE_POINTS;
    float c = MathUtils.cos(theta);
    float s = MathUtils.sin(theta);
    float x = radius;
    float y = 0;
    float cx = center.x;
    float cy = center.y;
    gl.glBegin(GL2.GL_LINE_LOOP);
    gl.glColor4f(color.x, color.y, color.z, 1);
    for (int i = 0; i < NUM_CIRCLE_POINTS; i++) {
        gl.glVertex3f(x + cx, y + cy, 0);
        // apply the rotation matrix
        float temp = x;
        x = c * x - s * y;
        y = s * temp + c * y;
    }
    gl.glEnd();
    gl.glPopMatrix();
}
开发者ID:unktomi，项目名称:form-follows-function，代码行数:25，代码来源:JoglDebugDraw.java

示例6: step

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
/**
 * @see org.jbox2d.testbed.framework.TestbedTest#step(org.jbox2d.testbed.framework.Testbe.settings)
 */
@Override
public void step(TestbedSettings settings) {
	
	boolean advanceRay = settings.pause == false || settings.singleStep;

	super.step(settings);
	addTextLine("Press 1-5 to drop stuff");

	float L = 25.0f;
	Vec2 point1 = new Vec2(0.0f, 10.0f);
	Vec2 d = new Vec2(L * MathUtils.cos(m_angle), -L * MathUtils.abs(MathUtils.sin(m_angle)));
	Vec2 point2 = point1.add(d);


	callback.m_fixture = null;
	m_world.raycast(callback, point1, point2);

	if (callback.m_fixture != null)
	{
		m_debugDraw.drawPoint(callback.m_point, 5.0f, new Color3f(0.4f, 0.9f, 0.4f));

		m_debugDraw.drawSegment(point1, callback.m_point, new Color3f(0.8f, 0.8f, 0.8f));

		Vec2 head = callback.m_normal.mul(.5f).addLocal(callback.m_point);
		m_debugDraw.drawSegment(callback.m_point, head, new Color3f(0.9f, 0.9f, 0.4f));
	}
	else
	{
		m_debugDraw.drawSegment(point1, point2, new Color3f(0.8f, 0.8f, 0.8f));
	}

	if (advanceRay)
	{
		m_angle += 0.25f * MathUtils.PI / 180.0f;
	}
}
开发者ID:mleoking，项目名称:PhET，代码行数:40，代码来源:EdgeShapes.java

示例7: generateCirle

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
private void generateCirle(Vec2 argCenter, float argRadius, Vec2[] argPoints, int argNumPoints){
	float inc = MathUtils.TWOPI/argNumPoints;
	
	for(int i=0; i<argNumPoints; i++){
		argPoints[i].x = (argCenter.x + MathUtils.cos(i*inc)*argRadius);
		argPoints[i].y = (argCenter.y + MathUtils.sin(i*inc)*argRadius);
	}
}
开发者ID:mleoking，项目名称:PhET，代码行数:9，代码来源:DebugDrawJ2D.java

示例8: drawParticles

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
@Override
public void drawParticles(Vec2[] centers, float radius, ParticleColor[] colors, int count) {
  GL2 gl = panel.getGL().getGL2();
  gl.glPushMatrix();
  transformViewport(gl, zero);

  float theta = 2 * MathUtils.PI / NUM_CIRCLE_POINTS;
  float c = MathUtils.cos(theta);
  float s = MathUtils.sin(theta);

  float x = radius;
  float y = 0;

  for (int i = 0; i < count; i++) {
    Vec2 center = centers[i];
    float cx = center.x;
    float cy = center.y;
    gl.glBegin(GL2.GL_TRIANGLE_FAN);
    if (colors == null) {
      gl.glColor4f(1, 1, 1, .4f);
    } else {
      ParticleColor color = colors[i];
      gl.glColor4b(color.r, color.g, color.b, color.a);
    }
    for (int j = 0; j < NUM_CIRCLE_POINTS; j++) {
      gl.glVertex3f(x + cx, y + cy, 0);
      float temp = x;
      x = c * x - s * y;
      y = s * temp + c * y;
    }
    gl.glEnd();
  }
  gl.glPopMatrix();
}
开发者ID:unktomi，项目名称:form-follows-function，代码行数:35，代码来源:JoglDebugDraw.java

示例9: drawParticlesWireframe

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
@Override
public void drawParticlesWireframe(Vec2[] centers, float radius, ParticleColor[] colors, int count) {
  GL2 gl = panel.getGL().getGL2();
  gl.glPushMatrix();
  transformViewport(gl, zero);

  float theta = 2 * MathUtils.PI / NUM_CIRCLE_POINTS;
  float c = MathUtils.cos(theta);
  float s = MathUtils.sin(theta);

  float x = radius;
  float y = 0;

  for (int i = 0; i < count; i++) {
    Vec2 center = centers[i];
    float cx = center.x;
    float cy = center.y;
    gl.glBegin(GL2.GL_LINE_LOOP);
    if (colors == null) {
      gl.glColor4f(1, 1, 1, 1);
    } else {
      ParticleColor color = colors[i];
      gl.glColor4b(color.r, color.g, color.b, (byte) 127);
    }
    for (int j = 0; j < NUM_CIRCLE_POINTS; j++) {
      gl.glVertex3f(x + cx, y + cy, 0);
      float temp = x;
      x = c * x - s * y;
      y = s * temp + c * y;
    }
    gl.glEnd();
  }
  gl.glPopMatrix();
}
开发者ID:unktomi，项目名称:form-follows-function，代码行数:35，代码来源:JoglDebugDraw.java

示例10: step

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
@Override
public void step(TestbedSettings settings) {

  boolean advanceRay = settings.pause == false || settings.singleStep;

  super.step(settings);
  addTextLine("Press 1-5 to drop stuff");

  float L = 25.0f;
  Vec2 point1 = new Vec2(0.0f, 10.0f);
  Vec2 d = new Vec2(L * MathUtils.cos(m_angle), -L * MathUtils.abs(MathUtils.sin(m_angle)));
  Vec2 point2 = point1.add(d);


  callback.m_fixture = null;
  getWorld().raycast(callback, point1, point2);

  if (callback.m_fixture != null) {
    getDebugDraw().drawPoint(callback.m_point, 5.0f, new Color3f(0.4f, 0.9f, 0.4f));

    getDebugDraw().drawSegment(point1, callback.m_point, new Color3f(0.8f, 0.8f, 0.8f));

    Vec2 head = callback.m_normal.mul(.5f).addLocal(callback.m_point);
    getDebugDraw().drawSegment(callback.m_point, head, new Color3f(0.9f, 0.9f, 0.4f));
  } else {
    getDebugDraw().drawSegment(point1, point2, new Color3f(0.8f, 0.8f, 0.8f));
  }

  if (advanceRay) {
    m_angle += 0.25f * MathUtils.PI / 180.0f;
  }
}
开发者ID:unktomi，项目名称:form-follows-function，代码行数:33，代码来源:EdgeShapes.java

示例11: drawParticles

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
@Override
    public void drawParticles(Vec2[] centers, float radius, ParticleColor[] colors, int count) {
    //    GL2 gl = panel.getGL().getGL2();
    gl.glPushMatrix();
    transformViewport(gl, zero);

    float theta = 2 * MathUtils.PI / NUM_CIRCLE_POINTS;
    float c = MathUtils.cos(theta);
    float s = MathUtils.sin(theta);

    float x = radius;
    float y = 0;

    for (int i = 0; i < count; i++) {
        Vec2 center = centers[i];
        float cx = center.x;
        float cy = center.y;
        gl.glBegin(GL2.GL_TRIANGLE_FAN);
        if (colors == null) {
            gl.glColor4f(1, 1, 1, .4f);
        } else {
            ParticleColor color = colors[i];
            gl.glColor4b(color.r, color.g, color.b, color.a);
        }
        for (int j = 0; j < NUM_CIRCLE_POINTS; j++) {
            gl.glVertex3f(x + cx, y + cy, 0);
            float temp = x;
            x = c * x - s * y;
            y = s * temp + c * y;
        }
        gl.glEnd();
    }
    gl.glPopMatrix();
}
开发者ID:unktomi，项目名称:form-follows-function，代码行数:35，代码来源:JoglDebugDraw.java

示例12: drawParticlesWireframe

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
@Override
    public void drawParticlesWireframe(Vec2[] centers, float radius, ParticleColor[] colors, int count) {
    //    GL2 gl = panel.getGL().getGL2();
    gl.glPushMatrix();
    transformViewport(gl, zero);

    float theta = 2 * MathUtils.PI / NUM_CIRCLE_POINTS;
    float c = MathUtils.cos(theta);
    float s = MathUtils.sin(theta);

    float x = radius;
    float y = 0;

    for (int i = 0; i < count; i++) {
        Vec2 center = centers[i];
        float cx = center.x;
        float cy = center.y;
        gl.glBegin(GL2.GL_LINE_LOOP);
        if (colors == null) {
            gl.glColor4f(1, 1, 1, 1);
        } else {
            ParticleColor color = colors[i];
            gl.glColor4b(color.r, color.g, color.b, (byte) 127);
        }
        for (int j = 0; j < NUM_CIRCLE_POINTS; j++) {
            gl.glVertex3f(x + cx, y + cy, 0);
            float temp = x;
            x = c * x - s * y;
            y = s * temp + c * y;
        }
        gl.glEnd();
    }
    gl.glPopMatrix();
}
开发者ID:unktomi，项目名称:form-follows-function，代码行数:35，代码来源:JoglDebugDraw.java

示例13: generateCirle

import org.jbox2d.common.MathUtils; //导入方法依赖的package包/类
private void generateCirle(Vec2 argCenter, float argRadius, Vec2[] argPoints, int argNumPoints) {
  float inc = MathUtils.TWOPI / argNumPoints;

  for (int i = 0; i < argNumPoints; i++) {
    argPoints[i].x = (argCenter.x + MathUtils.cos(i * inc) * argRadius);
    argPoints[i].y = (argCenter.y + MathUtils.sin(i * inc) * argRadius);
  }
}
开发者ID:weimingtom，项目名称:jbox2d，代码行数:9，代码来源:JoglDebugDraw.java


注：本文中的org.jbox2d.common.MathUtils.cos方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。