Lines that are not solid

Dashes and dots, the shape of a line's ends, the shape of its corners: each drawn as one line told what to look like. The statement at the bottom is ruled with dots, and its total held off by a dashed line.

JSON write_dotted_rules.json 361 lines

This one is not a program. It is the request the document server is sent: the same page, asked for over the network by an application that writes no PDF code at all.

This request writes out the height each heading and each sample starts at, where the library takes each of them from where the block above it ended. The lines themselves are the same stroke on both sides; set the page in another typeface and the library would carry everything down with it, where here it would stay put.

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{
  "items": [
    {
      "type": "text",
      "rect": {"llx": 72, "lly": 761.6, "urx": 523, "ury": 782},
      "content": ["Lines that are not solid"],
      "font": "DejaVuSans",
      "font_size": 17
    },
    {
      "type": "text",
      "rect": {"llx": 72, "lly": 704, "urx": 523, "ury": 749.6},
      "content": ["A stroke says how thick it is and what colour it is drawn in, and it may also say how the ink is laid down: the dashes and gaps it follows, the shape at its two ends, and the shape where two of its segments meet. Nothing below is drawn twice — each line is one stroke, told what to look like."],
      "font": "DejaVuSans",
      "font_size": 9.5
    },

    {
      "type": "text",
      "rect": {"llx": 72, "lly": 668.8, "urx": 523, "ury": 682},
      "content": ["Four patterns"],
      "font": "DejaVuSans",
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      "type": "line",
      "from": {"x": 72, "y": 652.8},
      "to": {"x": 222, "y": 652.8},
      "stroke": {"width": 1.5, "color": [0, 0, 0]}
    },
    {
      "type": "text",
      "rect": {"llx": 238, "lly": 644.4, "urx": 523, "ury": 655.8},
      "content": ["Solid, which is what a stroke does when it is told nothing"],
      "font": "DejaVuSans",
      "font_size": 9.5
    },
    {
      "type": "line",
      "from": {"x": 72, "y": 632.8},
      "to": {"x": 222, "y": 632.8},
      "stroke": {"width": 1.5, "color": [0, 0, 0], "dash": {"lengths": [4, 2]}}
    },
    {
      "type": "text",
      "rect": {"llx": 238, "lly": 624.4, "urx": 523, "ury": 635.8},
      "content": ["Dashes of four points, gaps of two"],
      "font": "DejaVuSans",
      "font_size": 9.5
    },
    {
      "type": "line",
      "from": {"x": 72, "y": 612.8},
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      "stroke": {"width": 1.5, "color": [0, 0, 0], "dash": {"lengths": [3]}}
    },
    {
      "type": "text",
      "rect": {"llx": 238, "lly": 604.4, "urx": 523, "ury": 615.8},
      "content": ["Dashes and gaps of the same three points"],
      "font": "DejaVuSans",
      "font_size": 9.5
    },
    {
      "type": "line",
      "from": {"x": 72, "y": 592.8},
      "to": {"x": 222, "y": 592.8},
      "stroke": {"width": 1.5, "color": [0, 0, 0], "dash": {"lengths": [0, 4]}, "cap": "round"}
    },
    {
      "type": "text",
      "rect": {"llx": 238, "lly": 584.4, "urx": 523, "ury": 595.8},
      "content": ["Dots, which are dashes of no length at all"],
      "font": "DejaVuSans",
      "font_size": 9.5
    },

    {
      "type": "text",
      "rect": {"llx": 72, "lly": 549.6, "urx": 523, "ury": 562.8},
      "content": ["Three ends"],
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      "type": "line",
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      "to": {"x": 162, "y": 531.6},
      "stroke": {"width": 9, "color": [0.45, 0.45, 0.45], "cap": "butt"}
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      "from": {"x": 162, "y": 521.6},
      "to": {"x": 162, "y": 541.6},
      "stroke": {"width": 0.4, "color": [0.75, 0.1, 0.1]}
    },
    {
      "type": "text",
      "rect": {"llx": 190, "lly": 523.2, "urx": 511, "ury": 534.6},
      "content": ["Squared off"],
      "font": "DejaVuSans",
      "font_size": 9.5
    },
    {
      "type": "line",
      "from": {"x": 84, "y": 505.6},
      "to": {"x": 162, "y": 505.6},
      "stroke": {"width": 9, "color": [0.45, 0.45, 0.45], "cap": "round"}
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      "type": "line",
      "from": {"x": 162, "y": 495.6},
      "to": {"x": 162, "y": 515.6},
      "stroke": {"width": 0.4, "color": [0.75, 0.1, 0.1]}
    },
    {
      "type": "text",
      "rect": {"llx": 190, "lly": 497.2, "urx": 511, "ury": 508.6},
      "content": ["Rounded"],
      "font": "DejaVuSans",
      "font_size": 9.5
    },
    {
      "type": "line",
      "from": {"x": 84, "y": 479.6},
      "to": {"x": 162, "y": 479.6},
      "stroke": {"width": 9, "color": [0.45, 0.45, 0.45], "cap": "projecting"}
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    {
      "type": "line",
      "from": {"x": 162, "y": 469.6},
      "to": {"x": 162, "y": 489.6},
      "stroke": {"width": 0.4, "color": [0.75, 0.1, 0.1]}
    },
    {
      "type": "text",
      "rect": {"llx": 190, "lly": 471.2, "urx": 511, "ury": 482.6},
      "content": ["Squared off past the end"],
      "font": "DejaVuSans",
      "font_size": 9.5
    },

    {
      "type": "text",
      "rect": {"llx": 72, "lly": 434.4, "urx": 523, "ury": 447.6},
      "content": ["Three corners"],
      "font": "DejaVuSans",
      "font_size": 11
    },
    {
      "type": "path",
      "segments": [
        {"move_to": {"x": 72, "y": 388.4}},
        {"line_to": {"x": 96, "y": 422.4}},
        {"line_to": {"x": 120, "y": 388.4}}
      ],
      "stroke": {"width": 9, "color": [0, 0, 0], "join": "miter"}
    },
    {
      "type": "text",
      "rect": {"llx": 72, "lly": 370.2, "urx": 168, "ury": 380.4},
      "content": ["Pointed"],
      "font": "DejaVuSans",
      "font_size": 8.5
    },
    {
      "type": "path",
      "segments": [
        {"move_to": {"x": 222, "y": 388.4}},
        {"line_to": {"x": 246, "y": 422.4}},
        {"line_to": {"x": 270, "y": 388.4}}
      ],
      "stroke": {"width": 9, "color": [0, 0, 0], "join": "round"}
    },
    {
      "type": "text",
      "rect": {"llx": 222, "lly": 370.2, "urx": 318, "ury": 380.4},
      "content": ["Rounded"],
      "font": "DejaVuSans",
      "font_size": 8.5
    },
    {
      "type": "path",
      "segments": [
        {"move_to": {"x": 372, "y": 388.4}},
        {"line_to": {"x": 396, "y": 422.4}},
        {"line_to": {"x": 420, "y": 388.4}}
      ],
      "stroke": {"width": 9, "color": [0, 0, 0], "join": "bevel"}
    },
    {
      "type": "text",
      "rect": {"llx": 372, "lly": 370.2, "urx": 468, "ury": 380.4},
      "content": ["Cut off"],
      "font": "DejaVuSans",
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    },

    {
      "type": "text",
      "rect": {"llx": 72, "lly": 341.2, "urx": 523, "ury": 354.4},
      "content": ["A statement ruled with dots"],
      "font": "DejaVuSans",
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    },
    {
      "type": "table",
      "columns": {"widths": [{"fraction": 1.0}, {"points": 110.0}], "total": 451.0},
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      "next": {"llx": 72, "lly": 96, "urx": 523, "ury": 329.2},
      "header": 1,
      "rules": [
        {"rule": "frame", "stroke": {"width": 0.75, "color": [0, 0, 0]}},
        {
          "rule": "horizontal_other",
          "stroke": {
            "width": 0.6,
            "color": [0.45, 0.45, 0.45],
            "dash": {"lengths": [0, 2.5]},
            "cap": "round"
          }
        },
        {
          "rule": {"vertical": 1},
          "stroke": {
            "width": 0.6,
            "color": [0.45, 0.45, 0.45],
            "dash": {"lengths": [0, 2.5]},
            "cap": "round"
          }
        }
      ],
      "rows": [
        {
          "cells": [
            {
              "content": ["Description"],
              "font": "DejaVuSans",
              "font_size": 9.5,
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4},
              "fill": [0.93, 0.94, 0.97]
            },
            {
              "content": ["Amount"],
              "font": "DejaVuSans",
              "font_size": 9.5,
              "align": "right",
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4},
              "fill": [0.93, 0.94, 0.97]
            }
          ],
          "min_height": 19.0
        },
        {
          "cells": [
            {
              "content": ["Drawing office, February"],
              "font": "DejaVuSans",
              "font_size": 9.0,
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4}
            },
            {
              "content": ["1\u00a0250.00\u00a0EUR"],
              "font": "DejaVuSans",
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              "align": "right",
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4}
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          "min_height": 16.0
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        {
          "cells": [
            {
              "content": ["Plates and proofs"],
              "font": "DejaVuSans",
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              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4}
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              "content": ["480.50\u00a0EUR"],
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              "align": "right",
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        {
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              "content": ["Delivery, two crates"],
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              "font_size": 9.0,
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4}
            },
            {
              "content": ["96.00\u00a0EUR"],
              "font": "DejaVuSans",
              "font_size": 9.0,
              "align": "right",
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4}
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        {
          "cells": [
            {
              "content": ["Storage, one month"],
              "font": "DejaVuSans",
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              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4}
            },
            {
              "content": ["210.25\u00a0EUR"],
              "font": "DejaVuSans",
              "font_size": 9.0,
              "align": "right",
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4}
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          "min_height": 16.0
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        {
          "cells": [
            {
              "content": ["Total"],
              "font": "DejaVuSans",
              "font_size": 9.5,
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4},
              "border": {
                "top": {"width": 0.8, "color": [0, 0, 0], "dash": {"lengths": [3, 2]}}
              }
            },
            {
              "content": ["2\u00a0036.75\u00a0EUR"],
              "font": "DejaVuSans",
              "font_size": 9.5,
              "align": "right",
              "padding": {"left": 5, "right": 5, "top": 4, "bottom": 4},
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                "top": {"width": 0.8, "color": [0, 0, 0], "dash": {"lengths": [3, 2]}}
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    {
      "type": "text",
      "rect": {"llx": 72, "lly": 170.8, "urx": 523, "ury": 191.2},
      "content": ["A dot is a dash of no length, so it puts ink down only under a rounded end: told to square its ends off, the same pattern draws nothing at all. That is why the dotted lines here ask for both."],
      "font": "DejaVuSans",
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}