Java FastMath.cos方法代碼示例

本文整理匯總了Java中com.jme3.math.FastMath.cos方法的典型用法代碼示例。如果您正苦於以下問題：Java FastMath.cos方法的具體用法？Java FastMath.cos怎麽用？Java FastMath.cos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com.jme3.math.FastMath的用法示例。

在下文中一共展示了FastMath.cos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: updateGeometry

import com.jme3.math.FastMath; //導入方法依賴的package包/類
protected void updateGeometry() {
    FloatBuffer positions = BufferUtils.createFloatBuffer(samples * 3);
    FloatBuffer normals = BufferUtils.createFloatBuffer(samples * 3);
    short[] indices = new short[samples * 2];
    float rate = FastMath.TWO_PI / samples;
    float angle = 0;
    int idc = 0;
    for (int i = 0; i < samples; i++) {
        float x = FastMath.cos(angle) * radius.x + center.x;
        float z = FastMath.sin(angle) * radius.y + center.y;
        positions.put(x).put(z).put(0);
        normals.put(new float[]{0, 1, 0});
        indices[idc++] = (short) i;
        if (i < samples - 1) {
            indices[idc++] = (short) (i + 1);
        } else {
            indices[idc++] = 0;
        }
        angle += rate;
    }
    setBuffer(VertexBuffer.Type.Position, 3, positions);
    setBuffer(VertexBuffer.Type.Normal, 3, normals);
    setBuffer(VertexBuffer.Type.Index, 2, indices);
    setBuffer(VertexBuffer.Type.TexCoord, 2, new float[]{0, 0, 1, 1});
    updateBound();
}

開發者ID:rockfireredmoon，項目名稱:icetone，代碼行數:27，代碼來源:Oval2d.java

示例2: onLayout

import com.jme3.math.FastMath; //導入方法依賴的package包/類
@Override
protected void onLayout(ElementContainer<?,?> parent) {
	for (BaseElement el : parent.getElements()) {
		float cx = parent.getWidth() / 2f;
		float cy = parent.getHeight() / 2f;
		Vector2f elpref = el.calcPreferredSize();
		RadialLayoutInfo con = constraints.get(el);
		String layoutData = el.getLayoutData();
		if(layoutData != null && layoutData.length() > 0) {
			con = parseConstraints(layoutData);
		}
		float inset = this.inset;
		if (con != null) {
			if(con.getInset() != Float.MIN_VALUE)
				inset = con.getInset();
			cx += FastMath.sin(con.getAngle()) * (cx - inset);
			cy -= FastMath.cos(con.getAngle()) * (cy - inset);
			el.setBounds(Math.round(cx - (elpref.x / 2f)), Math.round(cy - (elpref.y / 2f)), elpref.x, elpref.y);
		}
	}
}

開發者ID:rockfireredmoon，項目名稱:icetone，代碼行數:22，代碼來源:RadialLayout.java

示例3: updateGeometry

import com.jme3.math.FastMath; //導入方法依賴的package包/類
protected void updateGeometry() {
	FloatBuffer positions = BufferUtils.createFloatBuffer(samples * 3);
	FloatBuffer normals = BufferUtils.createFloatBuffer(samples * 3);
	short[] indices = new short[samples * 2];

	float rate = FastMath.TWO_PI / samples;
	float angle = 0;
	for (int i = 0; i < samples; i++) {
		float x = FastMath.cos(angle) + center.x;
		float y = FastMath.sin(angle) + center.y;
		positions.put(x * radius).put(y * radius).put(center.z);
		normals.put(new float[] { 0, 1, 0 });
		indices[i * 2] = (short) i;
		indices[i * 2 + 1] = (short) ((i + 1) % samples);
		angle += rate;
	}

	setBuffer(Type.Position, 3, positions);
	setBuffer(Type.Normal, 3, normals);
	setBuffer(Type.Index, 2, indices);

	setBuffer(Type.TexCoord, 2, new float[] { 0, 0, 1, 1 });

	updateBound();
}

開發者ID:meltzow，項目名稱:supernovae，代碼行數:26，代碼來源:Circle.java

示例4: simpleUpdate

import com.jme3.math.FastMath; //導入方法依賴的package包/類
@Override
public void simpleUpdate(float tpf){
    angle += tpf;
    angle %= FastMath.TWO_PI;
    float x = FastMath.cos(angle) * 2;
    float y = FastMath.sin(angle) * 2;
    emit.setLocalTranslation(x, 0, y);
}

開發者ID:mleoking，項目名稱:PhET，代碼行數:9，代碼來源:TestMovingParticle.java

示例5: setToleranceAngle

import com.jme3.math.FastMath; //導入方法依賴的package包/類
public static void setToleranceAngle(float angle) {
    if (angle < 0 || angle > 179) {
        throw new IllegalArgumentException(
                    "The angle must be between 0 and 179 degrees.");
    }
    toleranceDot = FastMath.cos(angle*FastMath.DEG_TO_RAD);
    toleranceAngle = angle;
}

開發者ID:mleoking，項目名稱:PhET，代碼行數:9，代碼來源:TangentBinormalGenerator.java

示例6: rotatedBoundsLocal

import com.jme3.math.FastMath; //導入方法依賴的package包/類
public static Vector2f rotatedBoundsLocal(Vector2f rect, float rad) {
	float s = FastMath.sin(rad);
	float c = FastMath.cos(rad);
	float rx = rect.y * FastMath.abs(s) + rect.x * FastMath.abs(c);
	float ry = rect.y * FastMath.abs(c) + rect.x * FastMath.abs(s);
	rect.set(rx, ry);
	return rect;
}

開發者ID:rockfireredmoon，項目名稱:icetone，代碼行數:9，代碼來源:MathUtil.java

示例7: rot

import com.jme3.math.FastMath; //導入方法依賴的package包/類
public Vector2f rot(Vector2f p, float angle) {
	cos = FastMath.cos(angle * FastMath.DEG_TO_RAD);
	sin = FastMath.sin(angle * FastMath.DEG_TO_RAD);
	x = p.x * cos - p.y * sin;
	y = p.x * sin + p.y * cos;
	return p.set(x, y);
}

開發者ID:rockfireredmoon，項目名稱:icetone，代碼行數:8，代碼來源:AnimElementMesh.java

示例8: getRandomPositionInXZPlane

import com.jme3.math.FastMath; //導入方法依賴的package包/類
/**
 * 以原點為中心，在半徑為radius的xz平麵範圍內取一個點
 * @param maxRadius
 * @param store
 * @return 
 */
public static Vector3f getRandomPositionInXZPlane(float maxRadius, Vector3f store) {
    if (store == null) {
        store = new Vector3f();
    }
    TempVars tv = TempVars.get();
   
    float radius = FastMath.nextRandomFloat() * maxRadius;
    float angleInRadian = FastMath.nextRandomFloat() * FastMath.TWO_PI;
    float x = FastMath.cos(angleInRadian) * radius;
    float y = FastMath.sin(angleInRadian) * radius;
    store.set(x, 0, y); // xz平麵
    tv.release();
    return store;
}

開發者ID:huliqing，項目名稱:LuoYing，代碼行數:21，代碼來源:MathUtils.java

示例9: setGeometryData

import com.jme3.math.FastMath; //導入方法依賴的package包/類
private void setGeometryData() {
    // allocate vertices
    int vertCount = (circleSamples + 1) * (radialSamples + 1);
    FloatBuffer fpb = BufferUtils.createVector3Buffer(vertCount);
    setBuffer(Type.Position, 3, fpb);

    // allocate normals if requested
    FloatBuffer fnb = BufferUtils.createVector3Buffer(vertCount);
    setBuffer(Type.Normal, 3, fnb);

    // allocate texture coordinates
    FloatBuffer ftb = BufferUtils.createVector2Buffer(vertCount);
    setBuffer(Type.TexCoord, 2, ftb);

    // generate geometry
    float inverseCircleSamples = 1.0f / circleSamples;
    float inverseRadialSamples = 1.0f / radialSamples;
    int i = 0;
    // generate the cylinder itself
    Vector3f radialAxis = new Vector3f(), torusMiddle = new Vector3f(), tempNormal = new Vector3f();
    for (int circleCount = 0; circleCount < circleSamples; circleCount++) {
        // compute center point on torus circle at specified angle
        float circleFraction = circleCount * inverseCircleSamples;
        float theta = FastMath.TWO_PI * circleFraction;
        float cosTheta = FastMath.cos(theta);
        float sinTheta = FastMath.sin(theta);
        radialAxis.set(cosTheta, sinTheta, 0);
        radialAxis.mult(outerRadius, torusMiddle);

        // compute slice vertices with duplication at end point
        int iSave = i;
        for (int radialCount = 0; radialCount < radialSamples; radialCount++) {
            float radialFraction = radialCount * inverseRadialSamples;
            // in [0,1)
            float phi = FastMath.TWO_PI * radialFraction;
            float cosPhi = FastMath.cos(phi);
            float sinPhi = FastMath.sin(phi);
            tempNormal.set(radialAxis).multLocal(cosPhi);
            tempNormal.z += sinPhi;
            fnb.put(tempNormal.x).put(tempNormal.y).put(
                    tempNormal.z);
   
            tempNormal.multLocal(innerRadius).addLocal(torusMiddle);
            fpb.put(tempNormal.x).put(tempNormal.y).put(
                    tempNormal.z);

            ftb.put(radialFraction).put(circleFraction);
            i++;
        }

        BufferUtils.copyInternalVector3(fpb, iSave, i);
        BufferUtils.copyInternalVector3(fnb, iSave, i);

        ftb.put(1.0f).put(circleFraction);

        i++;
    }

    // duplicate the cylinder ends to form a torus
    for (int iR = 0; iR <= radialSamples; iR++, i++) {
        BufferUtils.copyInternalVector3(fpb, iR, i);
        BufferUtils.copyInternalVector3(fnb, iR, i);
        BufferUtils.copyInternalVector2(ftb, iR, i);
        ftb.put(i * 2 + 1, 1.0f);
    }
}

開發者ID:mleoking，項目名稱:PhET，代碼行數:67，代碼來源:Torus.java

示例10: rotatedBounds

import com.jme3.math.FastMath; //導入方法依賴的package包/類
public static Vector2f rotatedBounds(Vector2f rect, float rad) {
	float s = FastMath.sin(rad);
	float c = FastMath.cos(rad);
	return new Vector2f(rect.y * FastMath.abs(s) + rect.x * FastMath.abs(c),
			rect.y * FastMath.abs(c) + rect.x * FastMath.abs(s));
}

開發者ID:rockfireredmoon，項目名稱:icetone，代碼行數:7，代碼來源:MathUtil.java

示例11: apply

import com.jme3.math.FastMath; //導入方法依賴的package包/類
@Override
public float apply (float a) {
	return (1 - FastMath.cos(a * FastMath.PI)) / 2;
}

開發者ID:rockfireredmoon，項目名稱:icetone，代碼行數:5，代碼來源:Interpolation.java

示例12: createCone

import com.jme3.math.FastMath; //導入方法依賴的package包/類
private static Mesh createCone(int radialSamples, float radius, float height) {
    Mesh cone = new Mesh();

    float fInvRS = 1.0f / radialSamples;

    // Generate points on the unit circle to be used in computing the mesh
    // points on a dome slice.
    float[] afSin = new float[radialSamples];
    float[] afCos = new float[radialSamples];
    for (int i = 0; i < radialSamples; i++) {
        float fAngle = FastMath.TWO_PI * fInvRS * i;
        afCos[i] = FastMath.cos(fAngle);
        afSin[i] = FastMath.sin(fAngle);
    }

    FloatBuffer vb = BufferUtils.createVector3Buffer(radialSamples + 2);
    cone.setBuffer(Type.Position, 3, vb);

    TempVars vars = TempVars.get();
    Vector3f tempVa = vars.vect1;

    for (int i = 0; i < radialSamples; i++) {
        Vector3f kRadial = tempVa.set(afCos[i], 0, afSin[i]);
        kRadial.mult(radius, tempVa);
        vb.put(tempVa.x).put(tempVa.y).put(tempVa.z);

        BufferUtils.populateFromBuffer(tempVa, vb, i);

    }
    vars.release();

    // top of the cone
    vb.put(0).put(height).put(0);
    // base of the cone
    vb.put(0).put(0).put(0);

    ShortBuffer ib = BufferUtils.createShortBuffer(3 * (radialSamples) * 2);
    cone.setBuffer(Type.Index, 3, ib);

    short top = (short) radialSamples;
    short bot = (short) (radialSamples + 1);

    for (int i = 0; i < radialSamples; i++) {
        short a = (short) i;
        short b = (short) ((i + 1) % radialSamples);
        ib.put(top);
        ib.put(b);
        ib.put(a);

        ib.put(a);
        ib.put(b);
        ib.put(bot);
    }

    cone.updateBound();

    return cone;
}

開發者ID:jMonkeyEngine，項目名稱:sdk，代碼行數:59，代碼來源:SceneEditTool.java

示例13: setGeometryData

import com.jme3.math.FastMath; //導入方法依賴的package包/類
/**
 * builds the vertices based on the radius
 */
private void setGeometryData() {
    setMode(Mode.Lines);

    FloatBuffer posBuf = BufferUtils.createVector3Buffer((radialSamples + 1));
    FloatBuffer colBuf = BufferUtils.createFloatBuffer((radialSamples + 1) * 4);
    FloatBuffer texBuf = BufferUtils.createVector2Buffer(radialSamples + 1);
    

    setBuffer(Type.Position, 3, posBuf);
    setBuffer(Type.Color, 4, colBuf);
    setBuffer(Type.TexCoord, 2, texBuf);

    // generate geometry
    float fInvRS = 1.0f / radialSamples;

    // Generate points on the unit circle to be used in computing the mesh
    // points on a sphere slice.
    float[] afSin = new float[(radialSamples + 1)];
    float[] afCos = new float[(radialSamples + 1)];
    for (int iR = 0; iR < radialSamples; iR++) {
        float fAngle = FastMath.TWO_PI * fInvRS * iR;
        afCos[iR] = FastMath.cos(fAngle);
        afSin[iR] = FastMath.sin(fAngle);
    }
    afSin[radialSamples] = afSin[0];
    afCos[radialSamples] = afCos[0];

    for (int iR = 0; iR <= radialSamples; iR++) {
        posBuf.put(afCos[iR])
                .put(afSin[iR])
                .put(0);
        colBuf.put(ColorRGBA.Orange.r)
                .put(ColorRGBA.Orange.g)
                .put(ColorRGBA.Orange.b)
                .put(ColorRGBA.Orange.a);
        texBuf.put(iR % 2f)
                .put(iR % 2f);

    }

    updateBound();
    setStatic();
}

開發者ID:jMonkeyEngine，項目名稱:sdk，代碼行數:47，代碼來源:ProbeRadiusShape.java

示例14: setGeometryData

import com.jme3.math.FastMath; //導入方法依賴的package包/類
/**
 * builds the vertices based on the radius
 */
private void setGeometryData() {
    setMode(Mode.Lines);

    FloatBuffer posBuf = BufferUtils.createVector3Buffer((radialSamples + 1));
    FloatBuffer colBuf = BufferUtils.createFloatBuffer((radialSamples + 1) * 4);
    FloatBuffer texBuf = BufferUtils.createVector2Buffer(radialSamples + 1);

    setBuffer(Type.Position, 3, posBuf);
    setBuffer(Type.Color, 4, colBuf);
    setBuffer(Type.TexCoord, 2, texBuf);

    // generate geometry
    float fInvRS = 1.0f / radialSamples;

    // Generate points on the unit circle to be used in computing the mesh
    // points on a sphere slice.
    float[] afSin = new float[(radialSamples + 1)];
    float[] afCos = new float[(radialSamples + 1)];
    for (int iR = 0; iR < radialSamples; iR++) {
        float fAngle = FastMath.TWO_PI * fInvRS * iR;
        afCos[iR] = FastMath.cos(fAngle);
        afSin[iR] = FastMath.sin(fAngle);
    }
    afSin[radialSamples] = afSin[0];
    afCos[radialSamples] = afCos[0];

    for (int iR = 0; iR <= radialSamples; iR++) {
        posBuf.put(afCos[iR])
                .put(afSin[iR])
                .put(0);
        colBuf.put(ColorRGBA.Orange.r)
                .put(ColorRGBA.Orange.g)
                .put(ColorRGBA.Orange.b)
                .put(ColorRGBA.Orange.a);
        texBuf.put(iR % 2f)
                .put(iR % 2f);

    }

    updateBound();
    setStatic();
}

開發者ID:jMonkeyEngine，項目名稱:sdk，代碼行數:46，代碼來源:RadiusShape.java

示例15: processToggleSwitchElement

import com.jme3.math.FastMath; //導入方法依賴的package包/類
private Spatial processToggleSwitchElement(Element elm, boolean isWhole) {
	String id = getUniqueId(elm.getAttribute("id"));
       boolean pointable = Boolean.parseBoolean(elm.getAttribute("pointable"));
	Vector3f location = parseVector3(elm.getAttribute("location"));
	Vector3f rotation = parseVector3(elm.getAttribute("rotation"));
	float xspan = Float.parseFloat(elm.getAttribute("xspan"));
	float zspan = Float.parseFloat(elm.getAttribute("yspan"));
	float yspan = Float.parseFloat(elm.getAttribute("zspan"));
	float angle = Float.parseFloat(elm.getAttribute("angle")) * FastMath.DEG_TO_RAD;
	ColorRGBA color = parseColor(elm.getAttribute("color"));
	boolean leftPressed = Boolean.parseBoolean(elm.getAttribute("leftPressed"));
	int numStates = Integer.parseInt(elm.getAttribute("numStates"));
	int initState = Integer.parseInt(elm.getAttribute("initState"));
	if (initState < 0) {
	    initState = 0;
	} else if (initState >= numStates) {
	    initState = numStates - 1;
	}

	float btxspan = xspan / (1.0f + FastMath.cos(angle));

	Node s = new Node(id);
	s.setLocalTranslation(location);
	s.setLocalRotation(new Quaternion().fromAngles(
			rotation.x * FastMath.DEG_TO_RAD,
			rotation.y * FastMath.DEG_TO_RAD,
			rotation.z * FastMath.DEG_TO_RAD));
	// button 1
	Spatial b1 = factory.makeBlock(id + "-b1", btxspan, yspan, zspan, color);
	b1.setLocalTranslation(-btxspan / 2, yspan / 2, 0);
	s.attachChild(b1);
	// button 2
	Spatial b2 = factory.makeBlock(id + "-b2", btxspan, yspan, zspan, color);
	b2.setLocalRotation(new Quaternion().fromAngles(0, 0, angle));
	float hypoLen = FastMath.sqr(btxspan * btxspan + yspan * yspan); // hypotenues
	float cosine = (btxspan / hypoLen) * FastMath.cos(angle) - (yspan / hypoLen) * FastMath.sin(angle);
	float sine = (yspan / hypoLen) * FastMath.cos(angle) + (btxspan / hypoLen) * FastMath.sin(angle);
	b2.setLocalTranslation(hypoLen / 2f * cosine, hypoLen / 2f * sine, 0);
	s.attachChild(b2);

	// get <downstream> and <state> elements
	LinkedList<String> dsIds = new LinkedList<>();
	for (org.w3c.dom.Node child = elm.getFirstChild(); child != null; child = child.getNextSibling()) {
		if (child.getNodeType() == org.w3c.dom.Node.ELEMENT_NODE
		        && child.getNodeName().equals("downstream")) {
			dsIds.add(((Element) child).getAttribute("id"));
		}
	}

	ToggleSwitchControl c = new ToggleSwitchControl(inventory, s, angle, leftPressed, numStates, initState);

	for (String dsId : dsIds) {
		c.addDownstreamId(dsId);
	}
	inventory.registerControl(s, c);
	
	if (isWhole) {
	    float mass = Float.parseFloat(elm.getAttribute("mass"));
	    inventory.addItem(s, mass);
        processDescriptionElements(elm, s, "toggleSwitch");
	}
       if (pointable) {
           s.setUserData("pointable", "" + pointable);
       }

	return s;
}

開發者ID:dwhuang，項目名稱:SMILE，代碼行數:68，代碼來源:Table.java

注：本文中的com.jme3.math.FastMath.cos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。