Merge pull request #584 from vizzuhq/align_axis_fix

Align axis fix

Author: schaumb

CHANGELOG.md

@@ -12,6 +12,7 @@
 - Fix line-rectangle polar connection linearity.
 - Fix all polar connection interpolation (except fading).
 - Remove unwanted line connections from line-circle + orientation changed anim.
+- Move axis to the center on align: center charts.
 
 ## [0.13.0] - 2024-09-13
 

src/chart/animator/planner.cpp

@@ -383,7 +383,7 @@ bool Planner::needColor() const
 }
 
 size_t Planner::dimensionCount(const Gen::Plot *plot,
-    Gen::ChannelId type)
+    Gen::AxisId type)
 {
 	return plot->getOptions()
 	    ->getChannels()
@@ -401,15 +401,15 @@ bool Planner::verticalBeforeHorizontal() const
 	    || !srcOpt->getChannels().anyAxisSet()
 	    || !trgOpt->getChannels().anyAxisSet()) {
 		if (srcOpt->getChannels().anyAxisSet())
-			return srcOpt->subAxisType() == Gen::ChannelId::y;
+			return srcOpt->subAxisType() == Gen::AxisId::y;
 		if (trgOpt->getChannels().anyAxisSet())
-			return trgOpt->mainAxisType() == Gen::ChannelId::y;
+			return trgOpt->mainAxisType() == Gen::AxisId::y;
 	}
 
-	auto srcXcnt = dimensionCount(source, Gen::ChannelId::x);
-	auto srcYcnt = dimensionCount(source, Gen::ChannelId::y);
-	auto trgXcnt = dimensionCount(target, Gen::ChannelId::x);
-	auto trgYcnt = dimensionCount(target, Gen::ChannelId::y);
+	auto srcXcnt = dimensionCount(source, Gen::AxisId::x);
+	auto srcYcnt = dimensionCount(source, Gen::AxisId::y);
+	auto trgXcnt = dimensionCount(target, Gen::AxisId::x);
+	auto trgYcnt = dimensionCount(target, Gen::AxisId::y);
 
 	if ((trgYcnt != srcYcnt) || (trgXcnt != srcXcnt)) {
 		return (trgYcnt > srcYcnt) || (trgXcnt < srcXcnt);

src/chart/animator/planner.h

@@ -50,7 +50,7 @@ class Planner : public ::Anim::Group
 	[[nodiscard]] bool positionMorphNeeded() const;
 	[[nodiscard]] bool verticalBeforeHorizontal() const;
 	static size_t dimensionCount(const Gen::Plot *plot,
-	    Gen::ChannelId type);
+	    Gen::AxisId type);
 
 	[[nodiscard]] bool isAnyLegend(Gen::ChannelId type) const;
 

src/chart/generator/plotbuilder.cpp

@@ -477,16 +477,23 @@ void PlotBuilder::addAlignment(const Buckets &subBuckets) const
 {
 	if (static_cast<bool>(plot->getOptions()->split)) return;
 
-	if (std::signbit(
-	        plot->axises.at(plot->getOptions()->subAxisType())
-	            .measure.range.getMin())
-	    || std::signbit(
-	        plot->axises.at(plot->getOptions()->subAxisType())
-	            .measure.range.getMax()))
+	auto &subAxisRange =
+	    plot->axises.at(plot->getOptions()->subAxisType())
+	        .measure.range;
+	if (std::signbit(subAxisRange.getMin())
+	    || std::signbit(subAxisRange.getMax()))
 		return;
 
 	if (plot->getOptions()->align == Base::Align::Type::none) return;
 
+	if (plot->getOptions()->align == Base::Align::Type::center) {
+		auto &&halfSize = subAxisRange.size() / 2.0;
+		if (!Math::Floating::is_zero(halfSize))
+			subAxisRange = Math::Range<double>::Raw(
+			    subAxisRange.getMin() - halfSize,
+			    subAxisRange.getMax() - halfSize);
+	}
+
 	auto &&vectical = !plot->getOptions()->isHorizontal();
 	const Base::Align align{plot->getOptions()->align,
 	    Math::Range(0.0, 1.0)};

src/chart/options/channel.cpp

@@ -29,6 +29,11 @@ ChannelId asChannel(AxisId type)
 	return static_cast<ChannelId>(static_cast<ChannelIdType>(type));
 }
 
+bool operator==(const AxisId &axis, const ChannelId &channel)
+{
+	return asChannel(axis) == channel;
+}
+
 Channel Channel::makeChannel(Type id)
 {
 	switch (id) {

src/chart/options/channel.h

@@ -93,6 +93,9 @@ class Channel
 std::optional<AxisId> asAxis(ChannelId type);
 ChannelId asChannel(AxisId type);
 
+[[nodiscard]] bool operator==(const AxisId &axis,
+    const ChannelId &channel);
+
 }
 
 #endif

src/chart/options/channels.h

@@ -31,7 +31,16 @@ class Channels
 	    const std::span<const ChannelId> &channelTypes) const;
 
 	[[nodiscard]] const Channel &at(const ChannelId &id) const;
-	Channel &at(const ChannelId &id);
+	[[nodiscard]] Channel &at(const ChannelId &id);
+
+	[[nodiscard]] const Channel &at(const AxisId &id) const
+	{
+		return at(asChannel(id));
+	}
+	[[nodiscard]] Channel &at(const AxisId &id)
+	{
+		return at(asChannel(id));
+	}
 
 	void removeSeries(const Data::SeriesIndex &index);
 

src/chart/options/options.cpp

@@ -81,7 +81,7 @@ ChannelId Options::stackChannelType() const
 	if (channels.anyAxisSet()) {
 		switch (geometry.get()) {
 		case ShapeType::area:
-		case ShapeType::rectangle: return subAxisType();
+		case ShapeType::rectangle: return asChannel(subAxisType());
 		default:
 		case ShapeType::circle:
 		case ShapeType::line: return ChannelId::size;
@@ -93,7 +93,7 @@ ChannelId Options::stackChannelType() const
 std::optional<ChannelId> Options::secondaryStackType() const
 {
 	if (channels.anyAxisSet() && geometry == ShapeType::line)
-		return subAxisType();
+		return asChannel(subAxisType());
 
 	return std::nullopt;
 }

src/chart/options/options.h

@@ -66,9 +66,9 @@ class Options
 
 	void reset();
 
-	[[nodiscard]] ChannelId mainAxisType() const
+	[[nodiscard]] AxisId mainAxisType() const
 	{
-		return isHorizontal() ? ChannelId::x : ChannelId::y;
+		return isHorizontal() ? AxisId::x : AxisId::y;
 	}
 
 	[[nodiscard]] bool isHorizontal() const
@@ -79,9 +79,9 @@ class Options
 		    == Gen::Orientation::horizontal;
 	}
 
-	[[nodiscard]] ChannelId subAxisType() const
+	[[nodiscard]] AxisId subAxisType() const
 	{
-		return isHorizontal() ? ChannelId::y : ChannelId::x;
+		return isHorizontal() ? AxisId::y : AxisId::x;
 	}
 
 	[[nodiscard]] const Channel &mainAxis() const
@@ -116,7 +116,7 @@ class Options
 	[[nodiscard]] bool isSplit() const
 	{
 		return split
-		    && (stackChannelType() != subAxisType() || isStacked());
+		    && (subAxisType() != stackChannelType() || isStacked());
 	}
 
 	Heading title{std::nullopt};

test/e2e/test_cases/test_cases.json

@@ -113,7 +113,7 @@
 			"refs": ["69db5d4"]
 		},
 		"basic_animations/someOtherTests/merge_split_area_stream_2dis_1con": {
-			"refs": ["b1e67de"]
+			"refs": ["e331f23"]
 		},
 		"basic_animations/someOtherTests/total_time_area_bar": {
 			"refs": ["d908ab5"]
@@ -506,7 +506,7 @@
 			"refs": ["08e742c"]
 		},
 		"web_content/analytical_operations/compare/stream_stacked": {
-			"refs": ["8200148"]
+			"refs": ["845f43a"]
 		},
 		"web_content/analytical_operations/compare/waterfall": {
 			"refs": ["6c43732"]
@@ -620,10 +620,10 @@
 			"refs": ["dcff220"]
 		},
 		"web_content/analytical_operations/filter/stream_1": {
-			"refs": ["2710f78"]
+			"refs": ["4f827d6"]
 		},
 		"web_content/analytical_operations/filter/stream_2": {
-			"refs": ["75719ee"]
+			"refs": ["9793ec1"]
 		},
 		"web_content/analytical_operations/misc/donut_to_coxcomb": {
 			"refs": ["76f76c6"]
@@ -770,7 +770,7 @@
 			"refs": ["4e1f1e8"]
 		},
 		"web_content/analytical_operations/sum/stream_stacked": {
-			"refs": ["9f4e0b4"]
+			"refs": ["9d0aeee"]
 		},
 		"web_content/analytical_operations/sum/treemap": {
 			"refs": ["d8a8b1c"]
@@ -800,7 +800,7 @@
 			"refs": ["bf2c4b9"]
 		},
 		"web_content_removed/animated/merge_split_area_stream_3dis_1con": {
-			"refs": ["305f396"]
+			"refs": ["c9c9175"]
 		},
 		"web_content_removed/animated/merge_split_bar": {
 			"refs": ["cf60e63"]
@@ -923,10 +923,10 @@
 			"refs": ["4bebc47"]
 		},
 		"web_content/presets/graph/stream": {
-			"refs": ["1be4e97"]
+			"refs": ["83e8724"]
 		},
 		"web_content/presets/graph/stream_vertical": {
-			"refs": ["cc443a6"]
+			"refs": ["15b5f83"]
 		},
 		"web_content/presets/graph/violin": {
 			"refs": ["683b150"]
@@ -1037,7 +1037,7 @@
 			"refs": ["c1a8d39"]
 		},
 		"web_content/static/graph/stream_stacked": {
-			"refs": ["843591b"]
+			"refs": ["3ab1f0c"]
 		},
 		"web_content/static/chart/waterfall": {
 			"refs": ["2aeab23"]
@@ -2738,7 +2738,7 @@
 			"refs": ["9efe1ec"]
 		},
 		"ww_noFade/wNoFade_cases/2_des_pol-without/circle/08_d-w_cir_2c": {
-			"refs": ["ac16890"]
+			"refs": ["940bc39"]
 		},
 		"ww_noFade/wNoFade_cases/2_des_pol-without/circle_V1/03_d-w_cir_V1": {
 			"refs": ["327ca16"]
@@ -2765,7 +2765,7 @@
 			"refs": ["30f4ada"]
 		},
 		"ww_noFade/wNoFade_cases/2_des_pol-without/circle_V1/08_d-w_cir_V1_2c": {
-			"refs": ["1a81ceb"]
+			"refs": ["cc6ba1d"]
 		},
 		"ww_noFade/wNoFade_cases/2_des_pol-without/line-rectangle/02_d-d_lin": {
 			"refs": ["64361fc"]
@@ -3065,10 +3065,10 @@
 			"refs": ["52a2da9"]
 		},
 		"ww_samples_for_presets/cartesian_coo_sys/32_C_A_stream_graph": {
-			"refs": ["9d218d6"]
+			"refs": ["dd86c4e"]
 		},
 		"ww_samples_for_presets/cartesian_coo_sys/33_C_A_stream_graph_vert": {
-			"refs": ["14a0296"]
+			"refs": ["bd982e1"]
 		},
 		"ww_samples_for_presets/cartesian_coo_sys/34_C_A_violin_graph": {
 			"refs": ["0cddf74"]