Question

我在http请求中有一个变量值

  registerFont('path-to-font-file', {family: 'CustomFont'});

  const canvas = createCanvas(600, 600);
  const paperCanvas = createCanvas(600, 600);

  const ctx = canvas.getContext('2d');
  ctx.font = "normal 30px CustomFont";
  ctx.fillText("Hello World", 10, 50);

  // using paperjs
  const paper = require("paper");
  const project = new paper.Project(paperCanvas);

  var text = new paper.PointText();
  text.fillColor = 'white';
  text.content = 'HELLO';
  text.fontSize = '60';
  text.fontFamily = 'CustomFont';
  text.strokeWidth = 0;
  text.strokeColor = 'blue';
  text.position = project.view.center;
  text.selected = true;
  project.activeLayer.addChild(text);
  project.view.draw();

  // return canvas.toDataURL(); this canvas renders font correctly.
  return  project.view.element.toDataURL(); // paper does not use registered font

数字3是可变值。如何将PaperJS插入local data = http.request('http://ip:port/json.htm?type=devices&rid=3')

number

Answer 1

您可以使用concatenation operator '..'：

local data = http.request('http://ip:port/json.htm?type=devices&rid=' .. number)

或string.format：

local data = http.request(string.format('http://ip:port/json.htm?type=devices&rid=%d', number))

http请求中的变量值

1 个答案: