API draw graph

Contents

• mlt_draw_graph: draw graph in MathLabTool.
  param:
  *graph_type: 'graph': line chart, 'graph_radar': radar chart, 'graph_histogram': histogram, 'graph_formula': Draw a custom formula image, 'custom': Draw custom graphics (circle, line segment).
  title: title.
  width: width.
  height: height.
  graph_data: object.
  ex:*

  var data_radar = {
  scale_max: 20,
  scale_min: 0,
  scale_num: 5,
  data: [
  {
  color: 'red',
  data: [[0, 2], [45, 5], [90, 17], [135, 10], [180, 4], [225, 4], [270, 4], [315, 4]]
  },
  {
  color: 'blue',
  data: [[0, 12], [45, 15], [90, 7], [135, 1], [180, 14], [225, 14], [270, 14], [315, 14]]
  }
  ]
  };

  mlt_draw_graph('graph_radar', 'test', 600, 500, data_radar);

  var data_line = {
  scale_max_y: 80,
  scale_min_y: 0,
  scale_num_y: 10,
  scale_max_x: 90,
  scale_min_x: 10,
  scale_num_x: 10,
  data: [
  {
  color: 'red',
  data: [[10, 14], [17, 11], [22, 77], [44, 15], [55, 12]]
  },
  {
  color: 'blue',
  data: [[11, 22], [12, 55], [14, 17], [15, 10], [77, 44]]
  }
  ]
  };

  mlt_draw_graph('graph', 'test1', 500, 400, data_line);

  var data_histogram = {
  scale_max_y: 10,
  scale_min_y: 0,
  scale_num_y: 10,
  scale_max_x: 90,
  scale_min_x: -10,
  scale_num_x: 10,
  data: [
  {
  color: 'blue',
  avg: 20,
  min: 8,
  max: 77,
  width: 10,
  data: [11, 22, 12, 55, 14, 17, 15, 8, 77, 20]
  }
  ]
  };

  mlt_draw_graph('graph_histogram', 'test2', 500, 400, data_histogram);

  var formula_func = function (x){
  var res = 2 * x * x;
  return res;
  };
  var data_formula = {
  scale_max_y: 20,
  scale_min_y: 0,
  scale_num_y: 10,
  scale_max_x: 10,
  scale_min_x: -10,
  scale_num_x: 10,
  data: [
  {
  color: 'blue',
  formula: "x * x",
  i_var: ['x']
  },
  {
  color: 'red',
  formula_code: formula_func,
  i_var: ['x']
  }
  ]
  };

  mlt_draw_graph('graph_formula', 'test6', 500, 400, data_formula);

  var data_custom = {
  scale_step_px: 30,
  grid: 0,
  data: [
  {
  shape: 1,
  color: 'red',
  data: [1, 2, 3, 0]
  },
  {
  shape: 2,
  color: 'blue',
  data: [[1, 2, -1, 2], [1, 2, 1, -2], [-1, 2, -1, -2], [1, -2, -1, -2]]
  }
  ]
  };

  mlt_draw_graph('custom', 'test1', 600, 500, data_custom);

• mlt_draw_graph_dim3: draw three-dimensional graph in MathLabTool.
  param:
  *graph_type: 'graph': line chart.
  title: title.
  width: width.
  height: height.
  graph_data: object.
  ex:*

  var data_line_3d = {
  scale_max_x: 20,
  scale_min_x: 0,
  scale_num_x: 5,
  scale_max_y: 20,
  scale_min_y: 0,
  scale_num_y: 5,
  scale_max_z: 20,
  scale_min_z: 0,
  scale_num_z: 5,
  data: [
  {
  color: 'yellow',
  data: [[1, 2, 3], [6, 19, 1], [4, 5, 20], [11, 5, 16], [18, 12, 13]]
  }
  ]
  };

  mlt_draw_graph_dim3('graph', 'test6', 500, 400, data_line_3d);