axes: Support minor ticks on reversed axis

fixes #10
cetz-package · Jun 23, 2024 · 1e19862 · 1e19862
1 parent 72960ea
commit 1e19862
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Showing 3 changed files with 13 additions and 2 deletions.
diff --git a/src/axes.typ b/src/axes.typ
@@ -343,6 +343,7 @@
     if "minor-step" in ticks and ticks.minor-step != none {
       assert(ticks.minor-step >= 0,
              message: "Axis minor tick step must be positive")
+      if axis.min > axis.max { ticks.minor-step *= -1 }
 
       let s = 1 / ticks.minor-step
 

diff --git a/tests/axes/ref/1.png b/tests/axes/ref/1.png
diff --git a/tests/axes/test.typ b/tests/axes/test.typ
@@ -1,7 +1,7 @@
 #set page(width: auto, height: auto)
-#import "/src/lib.typ": *
-#import "/src/cetz.typ": *
 #import "/tests/helper.typ": *
+#import cetz: draw
+#import cetz-plot: axes
 
 // Schoolbook Axis Styling
 #test-case({
@@ -57,3 +57,13 @@
     )),
     left: axes.axis(min: -1, max: 1, ticks: (step: none, minor-step: none)))
 })
+
+// #10 - Minor ticks on reversed axis
+#test-case({
+  import draw: *
+
+  axes.scientific(size: (6, 1),
+    bottom: axes.axis(min: 5, max: -5,
+      ticks: (step: 5, minor-step: 1)),
+    left: axes.axis(min: -1, max: 1, ticks: (step: none, minor-step: none)))
+})