IXuniRenderEngine Protocol Reference

Declared in IRenderEngine.h

Overview

Use for drawing.

– clear required method

Clear the engine.

- (void)clear

Discussion

Clear the engine.

Declared In

IRenderEngine.h

– getTextFill required method

Gets the color to fill text.

- (UIColor *)getTextFill

Return Value

return a kind of color.

Discussion

Gets the color to fill text.

Declared In

IRenderEngine.h

– setViewportSize:height: required method

Set view port size.

- (void)setViewportSize:(double)width height:(double)height

Parameters

width

the width of the size.
height

the height of the size.

Discussion

Set view port size.

Declared In

IRenderEngine.h

– setClipRect:y:w:h: required method

Clip the rectangle.

- (void)setClipRect:(double)x y:(double)y w:(double)w h:(double)h

Parameters

x

left of the rectangle.
y

top of the rectangle.
w

width of the rectangle.
h

height of the rectangle.

Discussion

Clip the rectangle.

Declared In

IRenderEngine.h

– clearClipRect required method

Clear clip rect

- (void)clearClipRect

Discussion

Clear clip rect

Declared In

IRenderEngine.h

– setFill: required method

Set fill color.

- (void)setFill:(UIColor *)color

Parameters

color

the specified color.

Discussion

Set fill color.

Declared In

IRenderEngine.h

– getFill required method

Get fill color.

- (UIColor *)getFill

Return Value

the fill color.

Discussion

Get fill color.

Declared In

IRenderEngine.h

– setStroke: required method

Set stroke color.

- (void)setStroke:(UIColor *)color

Parameters

color

the specified color.

Discussion

Set stroke color.

Declared In

IRenderEngine.h

– setStrokeThickness: required method

Set stroke thickness.

- (void)setStrokeThickness:(double)thickness

Parameters

thickness

the specified thickness.

Discussion

Set stroke thickness.

Declared In

IRenderEngine.h

– setTextFill: required method

Set text fill color.

- (void)setTextFill:(UIColor *)color

Parameters

color

the specified color.

Discussion

Set text fill color.

Declared In

IRenderEngine.h

– setFont: required method

Set font.

- (void)setFont:(UIFont *)font

Parameters

font

the specified font.

Discussion

Set font.

Declared In

IRenderEngine.h

– setOpacity: required method

Set opacity.

- (void)setOpacity:(double)opacity

Parameters

opacity

the specified opacity.

Discussion

Set opacity.

Declared In

IRenderEngine.h

– setBorderDashes: required method

Set border dashes.

- (void)setBorderDashes:(NSArray *)dashes

Parameters

dashes

the specified dashes.

Discussion

Set border dashes.

Declared In

IRenderEngine.h

– setSelectedDashes: required method

Set selected dashes.

- (void)setSelectedDashes:(NSArray *)dashes

Parameters

dashes

the specified dashes.

Discussion

Set selected dashes.

Declared In

IRenderEngine.h

– setScale:scaley: required method

Set scale.

- (void)setScale:(float)scalex scaley:(float)scaley

Parameters

scalex

scale x.
scaley

scale y.

Discussion

Set scale.

Declared In

IRenderEngine.h

– setPan:y: required method

Set pan.

- (void)setPan:(float)panX y:(float)panY

Parameters

panX

pan x.
panY

pan y.

Discussion

Set pan.

Declared In

IRenderEngine.h

– drawEllipse:cy:rx:ry: required method

Draw a ellipse.

- (void)drawEllipse:(double)cx cy:(double)cy rx:(double)rx ry:(double)ry

Parameters

cx

the left of the rectangle restraints the ellipse.
cy

the top of the rectangle restraints the ellipse.
rx

the width of the rectangle restraints the ellipse.
ry

the height of the rectangle restraints the ellipse.

Discussion

Draw a ellipse.

Declared In

IRenderEngine.h

– drawRect:y:w:h:isSelected: required method

Draw a rectangle.

- (void)drawRect:(double)x y:(double)y w:(double)w h:(double)h isSelected:(BOOL)selected

Parameters

x

the left of the rectangle.
y

the right of the rectangle.
w

the width of the rectangle.
h

the height of the rectangle.
selected

whether is selected.

Discussion

Draw a rectangle.

Declared In

IRenderEngine.h

– drawRect:y:w:h: required method

Draw a rectangle.

- (void)drawRect:(double)x y:(double)y w:(double)w h:(double)h

Parameters

x

the left of the rectangle.
y

the right of the rectangle.
w

the width of the rectangle.
h

the height of the rectangle.

Discussion

Draw a rectangle.

Declared In

IRenderEngine.h

– drawLine:y1:x2:y2: required method

Draw a line.

- (void)drawLine:(double)x1 y1:(double)y1 x2:(double)x2 y2:(double)y2

Parameters

x1

the x value of the start point of the line.
y1

the y value of the start point of the line.
x2

the x value of the end point of the line.
y2

the y value of the end point of the line.

Discussion

Draw a line.

Declared In

IRenderEngine.h

– drawLines:ys: required method

Draw lines.

- (void)drawLines:(NSArray *)xs ys:(NSArray *)ys

Parameters

xs

the x values of the points.
ys

the y values of the points.

Discussion

Draw lines.

Declared In

IRenderEngine.h

– drawSplines:ys:isRotated: required method

Draw splines.

- (void)drawSplines:(NSArray *)xs ys:(NSArray *)ys isRotated:(BOOL)isRotated

Parameters

xs

the x values of the points.
ys

the y values of the points.
isRotated

whether the chart is rotated.

Discussion

Draw splines.

Declared In

IRenderEngine.h

– drawSplineAreas:ys:stacked:isRotated: required method

Draw areas generates by splines.

- (void)drawSplineAreas:(NSArray *)xs ys:(NSArray *)ys stacked:(BOOL)stacked isRotated:(BOOL)isRotated

Parameters

xs

the x values of the points.
ys

the y values of the points.
stacked

whether is stacked.
isRotated

whether the chart is rotated.

Discussion

Draw areas generates by splines.

Declared In

IRenderEngine.h

– drawPolygon:ys: required method

Draw polygon.

- (void)drawPolygon:(NSArray *)xs ys:(NSArray *)ys

Parameters

xs

the x values of the points.
ys

the y values of the points.

Discussion

Draw polygon.

Declared In

IRenderEngine.h

– drawPolygonWithMode:mode: required method

Draw polygon with mode.

- (void)drawPolygonWithMode:(NSArray *)points mode:(CGPathDrawingMode)mode

Parameters

points

the array of XuniPoint.
mode

the CGPathDrawingMode.

Discussion

Draw polygon with mode.

Declared In

IRenderEngine.h

– drawRadialGauge:y:startX:startY:radiusOut:radiusIn:startAngle:endAngle: required method

Draw radial gauge.

- (void)drawRadialGauge:(double)x y:(double)y startX:(double)startX startY:(double)startY radiusOut:(double)radiusOut radiusIn:(double)radiusIn startAngle:(double)startAngle endAngle:(double)endAngle

Parameters

x
y
startX

x value of start point.
startY

y value of start point.
radiusOut

the external radius.
radiusIn

the inner radius.
startAngle

the start angle.
endAngle

the end angle.

Discussion

Draw radial gauge.

Declared In

IRenderEngine.h

– drawPieSegment:cy:radius:startAngle:sweepAngle:selected: required method

Draw the segments of pie.

- (CGMutablePathRef)drawPieSegment:(double)cx cy:(double)cy radius:(double)radius startAngle:(double)startAngle sweepAngle:(double)sweepAngle selected:(BOOL)selected

Parameters

cx

the x value of the center point of the circle.
cy

the y value of the center point of the circle.
radius

the radius of the circle.
startAngle

the start angle.
sweepAngle

the sweep angle.
selected

whether is selected.

Return Value

return a path of the pie segment.

Discussion

Draw the segments of pie.

Declared In

IRenderEngine.h

– drawDonutSegment:cy:radius:innerRadius:startAngle:sweepAngle:selected: required method

Draw the donut of pie.

- (CGMutablePathRef)drawDonutSegment:(double)cx cy:(double)cy radius:(double)radius innerRadius:(double)innerRadius startAngle:(double)startAngle sweepAngle:(double)sweepAngle selected:(BOOL)selected

Parameters

cx

the x value of the center point of the circle.
cy

the y value of the center point of the circle.
radius

the radius of the circle.
innerRadius

the inner radius of the circle.
startAngle

the start angle.
sweepAngle

the sweep angle.
selected

whether is selected.

Return Value

a path of the pie donut.

Discussion

Draw the donut of pie.

Declared In

IRenderEngine.h

– drawString:pt: required method

Draw string.

- (void)drawString:(NSString *)s pt:(XuniPoint *)pt

Parameters

s

the specified string.
pt

the specified point at which to draw the string.

Discussion

Draw string.

Declared In

IRenderEngine.h

– drawStringInRect:rect: required method

Draw string in rectangle.

- (void)drawStringInRect:(NSString *)s rect:(CGRect)rect

Parameters

s

the specified string.
rect

the specified rectangle which to draw the string in.

Discussion

Draw string in rectangle.

Declared In

IRenderEngine.h

– drawStringRotated:pt:center:angle: required method

Draw rotated string.

- (void)drawStringRotated:(NSString *)label pt:(XuniPoint *)pt center:(XuniPoint *)center angle:(double)angle

Parameters

label

the string.
pt

the specified point at which to draw the string.
center

the specified point at which the string is turned around.
angle

the angle.

Discussion

Draw rotated string.

Declared In

IRenderEngine.h

– drawImage:rect: required method

Draw image.

- (void)drawImage:(CGImageRef)image rect:(CGRect)rect

Parameters

image

the image.
rect

the specified rectangle at which to draw the image.

Discussion

Draw image.

Declared In

IRenderEngine.h

– measureString: required method

Measure the size of the string.

- (XuniSize *)measureString:(NSString *)s

Parameters

s

the specified string.

Return Value

return the size of the string.

Discussion

Measure the size of the string.

Declared In

IRenderEngine.h

– measureString:rotated: required method

Measure the size of the rotated string.

- (XuniSize *)measureString:(NSString *)s rotated:(double)angle

Parameters

s

the specified string.
angle

the rotated angle of the string.

Return Value

return the size of the rotated string.

Discussion

Measure the size of the rotated string.

Declared In

IRenderEngine.h

– startGroup: required method

Start group

- (void)startGroup:(NSString *)groupName

Parameters

groupName

the group name.

Discussion

Start group

Declared In

IRenderEngine.h

– endGroup required method

End group.

- (void)endGroup

Discussion

End group.

Declared In

IRenderEngine.h

– saveState required method

Save the state for render.

- (XuniRenderState *)saveState

Return Value

return the render state.

Discussion

Save the state for render.

Declared In

IRenderEngine.h

– restoreState: required method

Restore the render state.

- (void)restoreState:(XuniRenderState *)state

Parameters

state

the render state.

Discussion

Restore the render state.

Declared In

IRenderEngine.h

– getStroke required method

Get stroke color.

- (UIColor *)getStroke

Return Value

stroke color.

Discussion

Get stroke color.

Declared In

IRenderEngine.h

– getStrokeThickness required method

Get stroke thickness.

- (double)getStrokeThickness

Return Value

stroke thickness.

Discussion

Get stroke thickness.

Declared In

IRenderEngine.h