在线手册

  • canvas beginpath

    ... quot;5"; ctx.strokeStyle="green"; // Green path ctx.moveTo(0,75); ctx.lineTo(250,75); ctx.stroke(); // Draw it ctx.beginPath(); ctx.strokeStyle="purple"; // Purple path ctx.moveTo(50,0); ctx.lineTo(150,130 ...

  • canvas scale

    ... it » More Examples Example Draw a rectangle, scale to 200%, draw rectangle again, scale to 200%, draw rectangle again, scale to 200%, draw rectangle again: YourbrowserdoesnotsupporttheHTMLcanvastag. var c ...

  • canvas beginpath

    ... quot;5"; ctx.strokeStyle="green"; // Green path ctx.moveTo(0,75); ctx.lineTo(250,75); ctx.stroke(); // Draw it ctx.beginPath(); ctx.strokeStyle="purple"; // Purple path ctx.moveTo(50,0); ctx.lineTo(150,130 ...

  • canvas scale

    ... Play it » More Examples Example Draw a rectangle, scale to 200%, draw rectangle again, scale to 200%, draw rectangle again, scale to 200%, draw rectangle again: YourbrowserdoesnotsupporttheHTMLcanvastag. var c ...

  • prop element scrolltop

    ... document.getElementById("myImg").className = "slideUp";} Try it yourself » Example Draw a triangle on scroll: <!-- Use SVG to draw the triangle (has to be <path>) --><svg id="mySVG" ...

  • met canvas beginpath

    ... ctx.lineWidth="5"; ctx.strokeStyle="green"; // Green path ctx.moveTo(0,75); ctx.lineTo(250,75); ctx.stroke(); // Draw it ctx.beginPath(); ctx.strokeStyle="purple"; // Purple path ctx.moveTo(50,0); ctx.lineTo(150,130); ctx.stroke ...

  • canvas beginpath

    ... ctx.lineWidth="5"; ctx.strokeStyle="green"; // Green path ctx.moveTo(0,75); ctx.lineTo(250,75); ctx.stroke(); // Draw it ctx.beginPath(); ctx.strokeStyle="purple"; // Purple path ctx.moveTo(50,0); ctx.lineTo(150,130); ctx.stroke ...

  • canvas clip

    ... var ctx=c.getContext("2d"); // Clip a rectangular area ctx.rect(50,20,200,120); ctx.stroke(); ctx.clip(); // Draw red rectangle after clip() ctx.fillStyle="red"; ctx.fillRect(0,0,150,100); </script> Try it yourself ...

  • canvas closepath

    ... The closePath() method creates a path from the current point back to the starting point. Tip: Use the stroke() method to actually draw the path on the canvas. Tip: Use the fill() method to fill the drawing (black is default). Use the fillStyle ...

  • canvas lineto

    ... from that point to the last specified point in the canvas (this method does not draw the line). Tip: Use the stroke() method to actually draw the path on the canvas. JavaScript syntax: context.lineTo(x,y); Parameter Values ...

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