In my use case every occurence of <tspan>text</tspa

tspan in svg output is malformated about gadfly.jl HOT 5 OPEN

JohannesNaegele commented on June 5, 2024

tspan in svg output is malformated

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Comments (5)

bjarthur commented on June 5, 2024 1

i can reproduce only if i import Cairo, Fontconfig, which is not needed for SVG output.

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bjarthur commented on June 5, 2024

is the extra backslash causing the plot to be rendered incorrectly?

would be much easier to help if you boiled the full code down to a simpler example that didn't depend on your package. your OS, julia version, Gadfly and Compose version would help too.

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JohannesNaegele commented on June 5, 2024

Apparently the arguments Scale.x_log10, Scale.y_log10 break the output. This example from the docs gives malformated output if I use the log10 scale:

D = DataFrame(x=[0.5,1], y=[0.5,1], x1=[0,0.5], y1=[0,0.5], x2=[1,1.5], y2=[1,1.5])
pb = plot(D, xmin=:x1, ymin=:y1, xmax=:x2, ymax=:y2, Geom.rect, Scale.x_log10, Scale.y_log10);

draw(SVG("./foo.svg", 20cm, 20cm), pb)

The extra backslash makes the svg unreadable.

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JohannesNaegele commented on June 5, 2024

Additional info: I am using [c91e804a] Gadfly v1.4.0 and

julia> versioninfo()
Julia Version 1.9.3
Commit bed2cd540a1 (2023-08-24 14:43 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: macOS (arm64-apple-darwin22.4.0)
  CPU: 8 × Apple M2
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, apple-m1)
  Threads: 1 on 4 virtual cores
Environment:
  JULIA_EDITOR = code
  JULIA_NUM_THREADS = 1

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JohannesNaegele commented on June 5, 2024

i can reproduce only if i import Cairo, Fontconfig, which is not needed for SVG output.

Good catch! MWE:

using Gadfly
using DataFrames
import Cairo, Fontconfig

D = DataFrame(x=[0.5,1], y=[0.5,1], x1=[0,0.5], y1=[0,0.5], x2=[1,1.5], y2=[1,1.5])
pb = plot(D, xmin=:x1, ymin=:y1, xmax=:x2, ymax=:y2, Geom.rect, Scale.x_log10, Scale.y_log10);

draw(SVG("./foo.svg", 20cm, 20cm), pb)

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