d2/docs/examples/lib/3-lowlevel/lowlevel.go

32 lines
969 B
Go

package main
import (
"context"
"os"
"path/filepath"
"strings"
"oss.terrastruct.com/d2/d2compiler"
"oss.terrastruct.com/d2/d2exporter"
"oss.terrastruct.com/d2/d2layouts/d2dagrelayout"
"oss.terrastruct.com/d2/d2renderers/d2svg"
"oss.terrastruct.com/d2/d2themes/d2themescatalog"
"oss.terrastruct.com/d2/lib/log"
"oss.terrastruct.com/d2/lib/textmeasure"
)
// Remember to add if err != nil checks in production.
func main() {
graph, config, _ := d2compiler.Compile("", strings.NewReader("x -> y"), nil)
graph.ApplyTheme(d2themescatalog.NeutralDefault.ID)
ruler, _ := textmeasure.NewRuler()
_ = graph.SetDimensions(nil, ruler, nil)
ctx := log.WithDefault(context.Background())
_ = d2dagrelayout.Layout(ctx, graph, nil)
diagram, _ := d2exporter.Export(ctx, graph, nil)
diagram.Config = config
out, _ := d2svg.Render(diagram, &d2svg.RenderOpts{
ThemeID: &d2themescatalog.NeutralDefault.ID,
})
_ = os.WriteFile(filepath.Join("out.svg"), out, 0600)
}