本文整理汇总了C#中Android.Graphics.Canvas.DrawOval方法的典型用法代码示例。如果您正苦于以下问题：C# Canvas.DrawOval方法的具体用法？C# Canvas.DrawOval怎么用？C# Canvas.DrawOval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Android.Graphics.Canvas的用法示例。
在下文中一共展示了Canvas.DrawOval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C#代码示例。
示例1: parse
public static void parse(SVGProperties pSVGProperties, Canvas pCanvas, SVGPaint pSVGPaint, RectF pRect) {
float? centerX = pSVGProperties.getFloatAttribute(SVGConstants.ATTRIBUTE_CENTER_X);
float? centerY = pSVGProperties.getFloatAttribute(SVGConstants.ATTRIBUTE_CENTER_Y);
float? radiusX = pSVGProperties.getFloatAttribute(SVGConstants.ATTRIBUTE_RADIUS_X);
float? radiusY = pSVGProperties.getFloatAttribute(SVGConstants.ATTRIBUTE_RADIUS_Y);
if (centerX != null && centerY != null && radiusX != null && radiusY != null) {
pRect.Set(centerX.Value - radiusX.Value,
centerY.Value - radiusY.Value,
centerX.Value + radiusX.Value,
centerY.Value + radiusY.Value);
bool fill = pSVGPaint.setFill(pSVGProperties);
if (fill) {
pCanvas.DrawOval(pRect, pSVGPaint.getPaint());
}
bool stroke = pSVGPaint.setStroke(pSVGProperties);
if (stroke) {
pCanvas.DrawOval(pRect, pSVGPaint.getPaint());
}
if(fill || stroke) {
pSVGPaint.ensureComputedBoundsInclude(centerX.Value - radiusX.Value, centerY.Value - radiusY.Value);
pSVGPaint.ensureComputedBoundsInclude(centerX.Value + radiusX.Value, centerY.Value + radiusY.Value);
}
}
}示例2: DrawShape
protected void DrawShape(Canvas canvas)
{
Paint paint = new Paint();
paint.Color = Color;
switch (Shape)
{
case ShapeEnum.RectangleShape:
canvas.DrawRect(0, 0, ShapeWidth, ShapeHeight, paint);
break;
case ShapeEnum.OvalShape:
canvas.DrawOval(new RectF(0, 0, ShapeWidth, ShapeHeight), paint);
break;
case ShapeEnum.TriangleShape:
Path path = new Path();
path.MoveTo(ShapeWidth / 2, 0);
path.LineTo(ShapeWidth, ShapeHeight);
path.LineTo(0,ShapeHeight);
path.Close();
canvas.DrawPath(path, paint);
break;
default:
canvas.DrawCircle(ShapeWidth / 2, ShapeHeight / 2, ShapeWidth / 2, paint);
break;
}
}示例3: Draw
public override void Draw(Canvas canvas)
{
base.Draw (canvas);
var element = Element as CircleView;
var paint = new Paint ();
paint.SetStyle (Paint.Style.FillAndStroke);
paint.SetPathEffect(new DashPathEffect
(new float[] {element.StrokeDash, element.StrokeDash}, 0.0f));
using (var rect = new RectF (Left, Top, Right, Bottom)) {
canvas.DrawOval (new RectF (Left, Top, Right, Bottom), paint);
}
}示例4: OnDraw
protected override void OnDraw(Canvas canvas)
{
var r = CenterX - _paint.StrokeWidth * 0.5f;
canvas.Translate(CenterX, CenterX);
canvas.DrawOval(new RectF(-r, -r, r, r), _paint);
canvas.DrawCircle(0, 0, CenterRadius, _centerPaint);
if (_trackingCenter)
{
var c = _centerPaint.Color;
_centerPaint.SetStyle(Paint.Style.Stroke);
_centerPaint.Alpha = _highlightCenter ? 255 : 128;
canvas.DrawCircle(0, 0,
CenterRadius + _centerPaint.StrokeWidth,
_centerPaint);
_centerPaint.SetStyle(Paint.Style.Fill);
_centerPaint.Color = c;
}
}示例5: OnDraw
protected override void OnDraw(Canvas canvas)
{
base.OnDraw(canvas);
float r = strokeWidth - myPaint.StrokeWidth * 0.5f;
canvas.Translate((float)wowZapp.LaffOutOut.Singleton.ScreenXWidth / 1.5f, (float)wowZapp.LaffOutOut.Singleton.ScreenYHeight / 2.5f);
canvas.DrawOval(new RectF(-r, -r, r, r), myPaint);
canvas.DrawRect(new RectF(0f, 0f, 0f, 0f), myCenterPaint);
if (trackingCentre)
{
Color c = myCenterPaint.Color;
myCenterPaint.SetStyle(Paint.Style.Stroke);
myCenterPaint.Alpha = (highlightCentre == true ? 0xff : 0x80);
Rect rect = new Rect(0, 0, 0, 0);
myCenterPaint.SetStyle(Paint.Style.Fill);
myCenterPaint.Color = c;
canvas.DrawRect(rect, myCenterPaint);
}
}示例6: Draw
public override void Draw(Canvas canvas)
{
if (_mOval)
{
if (_mBorderWidth > 0)
{
canvas.DrawOval(_mDrawableRect, _mBitmapPaint);
canvas.DrawOval(_mBorderRect, _mBorderPaint);
}
else
{
canvas.DrawOval(_mDrawableRect, _mBitmapPaint);
}
}
else
{
if (_mBorderWidth > 0)
{
canvas.DrawRoundRect(_mDrawableRect, Math.Max(_mCornerRadius, 0),
Math.Max(_mCornerRadius, 0), _mBitmapPaint);
canvas.DrawRoundRect(_mBorderRect, _mCornerRadius, _mCornerRadius, _mBorderPaint);
}
else
{
canvas.DrawRoundRect(_mDrawableRect, _mCornerRadius, _mCornerRadius, _mBitmapPaint);
}
}
}示例7: Draw
public override void Draw(Canvas canvas)
{
canvas.DrawOval(oval, paint);
}示例8: Draw
public override void Draw(Canvas canvas)
{
canvas.DrawOval(mRectF, mPaint);
}示例9: OnDraw
protected override void OnDraw(Canvas canvas)
{
base.OnDraw (canvas);
float r = 100 - myPaint.StrokeWidth * 0.5f;
float outr = 120;
canvas.Translate (144f, 140f);
canvas.DrawOval (new RectF (-r, -r, r, r), myPaint);
canvas.DrawOval (new RectF (-outr, -outr, outr, outr), myOuterPaint);
canvas.DrawRect (new RectF (-50f, 140f, 100f, 160f), myCenterPaint);
if (trackingCentre) {
Color c = myCenterPaint.Color;
myCenterPaint.SetStyle (Paint.Style.Stroke);
myCenterPaint.Alpha = (highlightCentre == true ? 0xff : 0x80);
Rect rect = new Rect (-50, 140, 100, 160);
myCenterPaint.SetStyle (Paint.Style.Fill);
myCenterPaint.Color = c;
canvas.DrawRect (rect, myCenterPaint);
}
}示例10: GetOvalBitmap
/// <summary>
/// Gets the oval bitmap.
/// </summary>
/// <returns>The oval bitmap.</returns>
/// <param name="bitmap">Bitmap.</param>
private Bitmap GetOvalBitmap(Bitmap bitmap)
{
Bitmap output = null;
if(bitmap != null)
{
output = Bitmap.CreateBitmap(bitmap.Width, bitmap.Height, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(output);
Paint paint = new Paint();
Rect rect = new Rect(0, 0, bitmap.Width, bitmap.Height);
RectF rectF = new RectF(rect);
paint.AntiAlias = true;
canvas.DrawARGB(0, 0, 0, 0);
paint.Color = Color.Red;
canvas.DrawOval(rectF, paint);
paint.SetXfermode(new PorterDuffXfermode(PorterDuff.Mode.SrcIn));
canvas.DrawBitmap(bitmap, rect, rect, paint);
}
return output;
}示例11: OnDraw
//@SuppressLint("DrawAllocation")
//@Override
protected override void OnDraw(Canvas canvas)
{
int centerX = Width / 2;
int centerY = Height / 2;
// drawing color wheel
canvas.DrawBitmap(colorWheelBitmap, centerX - colorWheelRadius, centerY - colorWheelRadius, null);
// drawing color view
colorViewPaint.Color = Color.HSVToColor(colorHSV);
canvas.DrawPath(colorViewPath, colorViewPaint);
// drawing value slider
float[] hsv = new float[] { colorHSV[0], colorHSV[1], 1f };
SweepGradient sweepGradient = new SweepGradient(centerX, centerY, new int[] { Color.Black, Color.HSVToColor(hsv), Color.White }, null);
sweepGradient.SetLocalMatrix(gradientRotationMatrix);
valueSliderPaint.SetShader(sweepGradient);
canvas.DrawPath(valueSliderPath, valueSliderPaint);
// drawing color wheel pointer
float hueAngle = (float)Math.ToRadians(colorHSV[0]);
int colorPointX = (int)(-Math.Cos(hueAngle) * colorHSV[1] * colorWheelRadius) + centerX;
int colorPointY = (int)(-Math.Sin(hueAngle) * colorHSV[1] * colorWheelRadius) + centerY;
float pointerRadius = 0.075f * colorWheelRadius;
int pointerX = (int)(colorPointX - pointerRadius / 2);
int pointerY = (int)(colorPointY - pointerRadius / 2);
colorPointerCoords.Set(pointerX, pointerY, pointerX + pointerRadius, pointerY + pointerRadius);
canvas.DrawOval(colorPointerCoords, colorPointerPaint);
// drawing value pointer
valuePointerPaint.Color = Color.HSVToColor(new float[] { 0f, 0f, 1f - colorHSV[2] });
double valueAngle = (colorHSV[2] - 0.5f) * Math.Pi;
float valueAngleX = (float)Math.Cos(valueAngle);
float valueAngleY = (float)Math.Sin(valueAngle);
canvas.DrawLine(valueAngleX * innerWheelRadius + centerX, valueAngleY * innerWheelRadius + centerY, valueAngleX * outerWheelRadius + centerX,
valueAngleY * outerWheelRadius + centerY, valuePointerPaint);
// drawing pointer arrow
if (arrowPointerSize > 0)
{
drawPointerArrow(canvas);
}
}示例12: OnDraw
protected override void OnDraw(Canvas canvas)
{
lock (this) {
if (mBitmap != null) {
Path path = mPath;
int outer = new Color (192, 192, 192);
int inner = new Color (255, 112, 16);
if (mLastX >= mMaxX) {
mLastX = 0;
Canvas cavas = mCanvas;
float yoffset = mYOffset;
float maxx = mMaxX;
float oneG = SensorManager.StandardGravity * mScale[0];
paint.Color = new Color (170, 170, 170);
cavas.DrawColor (Color.Black);
cavas.DrawLine (0, yoffset, maxx, yoffset, paint);
cavas.DrawLine (0, yoffset + oneG, maxx, yoffset + oneG, paint);
cavas.DrawLine (0, yoffset - oneG, maxx, yoffset - oneG, paint);
}
canvas.DrawBitmap (mBitmap, 0, 0, null);
float[] values = mOrientationValues;
if (mWidth < mHeight) {
float w0 = mWidth * 0.333333f;
float w = w0 - 32;
float x = w0 * 0.5f;
for (int i = 0; i < 3; i++) {
canvas.Save (SaveFlags.Matrix);
canvas.Translate (x, w * 0.5f + 4.0f);
canvas.Save (SaveFlags.Matrix);
paint.Color = outer;
canvas.Scale (w, w);
canvas.DrawOval (mRect, paint);
canvas.Restore ();
canvas.Scale (w - 5, w - 5);
paint.Color = inner;
canvas.Rotate (-values[i]);
canvas.DrawPath (path, paint);
canvas.Restore ();
x += w0;
}
} else {
float h0 = mHeight * 0.333333f;
float h = h0 - 32;
float y = h0 * 0.5f;
for (int i = 0; i < 3; i++) {
canvas.Save (SaveFlags.Matrix);
canvas.Translate (mWidth - (h * 0.5f + 4.0f), y);
canvas.Save (SaveFlags.Matrix);
paint.Color = outer;
canvas.Scale (h, h);
canvas.DrawOval (mRect, paint);
canvas.Restore ();
canvas.Scale (h - 5, h - 5);
paint.Color = inner;
canvas.Rotate (-values[i]);
canvas.DrawPath (path, paint);
canvas.Restore ();
y += h0;
}
}
}
}
}示例13: DrawOval
void DrawOval (Canvas canvas, float x, float y, float major, float minor,
float orientation, Paint paint)
{
canvas.Save (SaveFlags.Matrix);
canvas.Rotate ((float) (orientation * 180 / Math.PI), x, y);
mReusableOvalRect.Left = x - minor / 2;
mReusableOvalRect.Right = x + minor / 2;
mReusableOvalRect.Top = y - major / 2;
mReusableOvalRect.Bottom = y + major / 2;
canvas.DrawOval (mReusableOvalRect, paint);
canvas.Restore ();
}