Improve the surface series

Author: 38

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## Plotters latest(?)
+
+### Improved
+
+- Surface series now supports more customizations
+
 ## Plotters 0.3.0 (2020-09-03)
 This is the next major release of Plotters, see [release notes](./RELEASE-NOTES.md) for more detials.
 

examples/wasm-demo/src/plot3d.rs

@@ -24,12 +24,12 @@ pub fn draw(canvas: HtmlCanvasElement, pitch: f64, yaw: f64) -> DrawResult<()> {
 
     chart.configure_axes().draw()?;
 
-    chart.draw_series(SurfaceSeries::<f64, _, f64>::new(
-        x_axis.values(),
-        z_axis.values(),
-        |&x, &z| (x * x + z * z).cos(),
-        &BLUE.mix(0.2),
-    ))?;
+    chart.draw_series(
+        SurfaceSeries::xoz(x_axis.values(), z_axis.values(), |x:f64, z:f64| {
+            (x * x + z * z).cos()
+        })
+        .style(&BLUE.mix(0.2)),
+    )?;
 
     chart.draw_series(LineSeries::new(
         (-100..100)

src/series/surface.rs

@@ -137,8 +137,8 @@ macro_rules! impl_constructor {
         {
             pub fn $name<IterA, IterB>(a: IterA, b: IterB, f: SurfaceFunc) -> Self
             where
-                IterA: DoubleEndedIterator<Item = <$dir as Direction<X, Y, Z>>::Input1Type>,
-                IterB: DoubleEndedIterator<Item = <$dir as Direction<X, Y, Z>>::Input2Type>,
+                IterA: Iterator<Item = <$dir as Direction<X, Y, Z>>::Input1Type>,
+                IterB: Iterator<Item = <$dir as Direction<X, Y, Z>>::Input2Type>,
             {
                 Self::new(a, b, f)
             }