我试图学习如何在拉斯特绘制地图, 并找到使用绘图师的指南(如果有人知道有更好的图书馆可以让我知道) 。

https://plotters-rs.github.io/book/intro/getting_started.html

总之,我是在Fedora 37, 并使用指南的“获取开始”部分所展示的例子, 遇到一个问题。

代码是:

/*
Example of plotting in Rust
*/

use plotters::prelude::*;

fn main() {
    
    let root_drawing_area = BitMapBackend::new("0.1.png", (1024, 768))
        .into_drawing_area();

    root_drawing_area.fill(&WHITE).unwrap();

    let mut chart = ChartBuilder::on(&root_drawing_area)
        .build_cartesian_2d(-3.14..3.14, -1.2..1.2)
        .unwrap();

    chart.draw_series(LineSeries::new(
        (-314..314).map(|x| x as f64 / 100.0)
        .map(|x| (x, x.sin())), &RED))
        .unwrap();

}

在我的货物.toml 文件中,我用 cargo 添加了依赖性,添加了绘图器

但当我用 cargo building 来运行代码时, 我就会发现这个错误 :

Compiling yeslogic-fontconfig-sys v3.2.0
error: failed to run custom build command for `yeslogic-fontconfig-sys v3.2.0`

Caused by:
  process didn t exit successfully: `/home/usr/Dev/RustyKrab/plotting/plot_example/target/debug/build/yeslogic-fontconfig-sys-3bf9e95194fbfdbd/build-script-build` (exit status: 101)

继续坚持下去

--- stdout
  cargo:rerun-if-env-changed=RUST_FONTCONFIG_DLOPEN
  cargo:rerun-if-env-changed=FONTCONFIG_NO_PKG_CONFIG
  cargo:rerun-if-env-changed=PKG_CONFIG_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG
  cargo:rerun-if-env-changed=PKG_CONFIG
  cargo:rerun-if-env-changed=FONTCONFIG_STATIC
  cargo:rerun-if-env-changed=FONTCONFIG_DYNAMIC
  cargo:rerun-if-env-changed=PKG_CONFIG_ALL_STATIC
  cargo:rerun-if-env-changed=PKG_CONFIG_ALL_DYNAMIC
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_PATH
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_LIBDIR
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR

和标准计算器

--- stderr
  thread  main  panicked at  called `Result::unwrap()` on an `Err` value: "`"pkg-config" "--libs" "--cflags" "fontconfig"` did not exit successfully: exit status: 1
error: could not find system library  fontconfig  required by the  yeslogic-fontconfig-sys  crate

--- stderr
Package fontconfig was not found in the pkg-config search path.
Perhaps you should add the directory containing `fontconfig.pc 
to the PKG_CONFIG_PATH environment variable
Package  fontconfig , required by  virtual:world , not found
" , /home/usr/.cargo/registry/src/github.com-1ecc6299db9ec823/yeslogic-fontconfig-sys-3.2.0/build.rs:8:48

错误最后一行为 note: 使用 `RUST_BACKTRACE=1' 环境变量运行,以显示回溯跟踪 。 我尝试运行 RUST_BACKTRACE=1 alacrity ,但只是不起作用。

我怎么能在这附近工作 这样我才能在拉斯特用绘图机?

注意: 我已经安装了字体配置, 使用 sudo dnf 安装字体配置