Geometry Members

1# Views retain their own meaning even though they share the nine-point API.2page=canvas(size=(145mm,120mm),background="#ffffff")3function mark_frame(view,color) {4    for location in [view.top_left,view.top_center,view.top_right,5                     view.middle_left,view.center,view.middle_right,6                     view.bottom_left,view.bottom_center,view.bottom_right] {7        page.add(ellipse(size=(1.5mm,1.5mm),fill=color),anchor=center,target=location)8    }9}10curve=page.add(path(commands=[move_to(0mm,20mm),11    cubic_to(15mm,-5mm,40mm,40mm,60mm,20mm)],12    border_color="#0072b2",border_width=1mm),offset=(15mm,12mm))13marked=mark_frame(curve,"#df6e70")14layout=curve.bounds15marked=mark_frame(layout,"#df6e70")16page.add(rect(size=(layout.width,layout.height),border_color="#df6e70",17              border_width=0.15mm),target=layout.top_left)18marked=mark_frame(curve.path,"#009e88")19marked=mark_frame(curve.path.bounds,"#009e88")20painted=curve.ink21marked=mark_frame(painted.bounds,"#287dc3")22boundary=painted.boundary23page.add(ellipse(size=(2mm,2mm),fill="#287dc3"),anchor=center,24         target=boundary.nearest(to=layout.top_left)[0])25 26# List indices refer to original subpaths, segments, nodes and controls.27route=curve.path.subpaths[0]28same_route=route.path29segment=route.segments[0]30node=route.nodes[1]31control=segment.controls[0]32all_controls=segment.controls33for location in [route.start,route.end,node,control,all_controls[1]] {34    page.add(ellipse(size=(2mm,2mm),fill="#e69f00"),anchor=center,target=location)35}36point=segment.at(t=0.5)37coordinate=(point.x,point.y)38page.add(text("t = 0.5",font_size=6pt),offset=(coordinate[0]+2mm,coordinate[1]-4mm))39direction=point.tangent40left_normal=point.normal41page.add(line(length=7mm,line_color="#009e88"),anchor=self.path.start,42         target=point,rotation=point.tangent_angle)43page.add(ellipse(size=(2mm,2mm),fill="#009e88"),anchor=center,44         target=point,offset=(left_normal[0]*5mm,left_normal[1]*5mm))45page.add(ellipse(size=(2mm,2mm),fill="#009e88"),anchor=center,46         target=point,offset=(direction[0]*5mm,direction[1]*5mm))47box_point=layout.top_left48page.add(text("Bounds / path / ink",font_size=9pt),49         offset=(box_point.x,box_point.y-5mm))50 51# Plot areas, complete axes, labels, ticks and exponent labels are components.52p=plot(size=(105mm,50mm),x=axis(range=(0,4000),notation=offset,53       exponent=3,label="Time"),y=axis(range=(0,5),label="Signal"))54p.line(x=[0,1000,2000,3000,4000],y=[1,2,4,3,4])55chart=page.add(p,offset=(15mm,65mm))56area=chart.plot_area57marked=mark_frame(area,"#df6e70")58marked=mark_frame(area.bounds,"#df6e70")59axes=chart.axes60horizontal=axes["x"]61marked=mark_frame(horizontal,"#009e88")62marked=mark_frame(horizontal.bounds,"#009e88")63marked=mark_frame(horizontal.label,"#e69f00")64marked=mark_frame(horizontal.exponent,"#e69f00")65tick=horizontal.ticks[0]66marked=mark_frame(tick,"#e69f00")67for location in [horizontal.min,horizontal.max,68                 horizontal.spine.path.at(fraction=0.5)] {69    page.add(ellipse(size=(2mm,2mm),fill="#287dc3"),anchor=center,target=location)70}