RadarChart related lerps added to lerp.dart

creky · Feb 18, 2021 · fd00abe · fd00abe
1 parent 34828f9
commit fd00abe
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Showing 2 changed files with 64 additions and 15 deletions.
diff --git a/lib/src/chart/radar_chart/radar_chart_darta.dart b/lib/src/chart/radar_chart/radar_chart_darta.dart
@@ -1,5 +1,9 @@
+import 'dart:ui';
+
 import 'package:fl_chart/fl_chart.dart';
+import 'package:fl_chart/src/utils/lerp.dart';
 import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter/painting.dart';
 
 typedef GetTitleByIndexFunction = String Function(int index);
@@ -8,17 +12,27 @@ class RadarChartData extends BaseChartData {
   final List<RadarDataSet> dataSets;
   final GetTitleByIndexFunction getTitle;
   final int count;
+  final Color fillColor;
 
   RadarChartData({
     this.dataSets = const [],
     this.getTitle,
     @required this.count,
+    this.fillColor = Colors.transparent,
   }) : assert(count != null);
 
   @override
-  BaseChartData lerp(BaseChartData a, BaseChartData b, double t) {
-    //ToDo(payam) : complete this method
-    throw Exception('Illegal State');
+  RadarChartData lerp(BaseChartData a, BaseChartData b, double t) {
+    if (a is RadarChartData && b is RadarChartData && t != null) {
+      return RadarChartData(
+        getTitle: b.getTitle,
+        count: lerpInt(a.count, b.count, t),
+        fillColor: Color.lerp(a.fillColor, b.fillColor, t),
+        dataSets: lerpRadarDataSetList(a.dataSets, b.dataSets, t),
+      );
+    } else {
+      throw Exception('Illegal State');
+    }
   }
 }
 
@@ -31,12 +45,20 @@ class RadarDataSet {
     this.color,
   });
 
-//ToDo(payam) : add lerp function
+  static RadarDataSet lerp(RadarDataSet a, RadarDataSet b, double t) {
+    return RadarDataSet(
+      dataEntries: lerpRadarEntryList(a.dataEntries, b.dataEntries, t),
+      color: Color.lerp(a.color, b.color, t),
+    );
+  }
 }
 
 class RadarEntry {
   final double value;
 
   RadarEntry({this.value = 0});
-//ToDo(payam) : add lerp function
+
+  static RadarEntry lerp(RadarEntry a, RadarEntry b, double t) {
+    return RadarEntry(value: lerpDouble(a.value, b.value, t));
+  }
 }
diff --git a/lib/src/utils/lerp.dart b/lib/src/utils/lerp.dart
@@ -1,7 +1,7 @@
-
 import 'dart:ui';
 
 import 'package:fl_chart/fl_chart.dart';
+import 'package:fl_chart/src/chart/radar_chart/radar_chart_darta.dart';
 import 'package:fl_chart/src/chart/scatter_chart/scatter_chart_data.dart';
 
 List<Color> lerpColorList(List<Color> a, List<Color> b, double t) {
@@ -38,7 +38,6 @@ int lerpInt(int a, int b, double t) {
   return (a + (b - a) * t).round();
 }
 
-
 List<FlSpot> lerpFlSpotList(List<FlSpot> a, List<FlSpot> b, double t) {
   if (a != null && b != null && a.length == b.length) {
     return List.generate(a.length, (i) {
@@ -49,7 +48,8 @@ List<FlSpot> lerpFlSpotList(List<FlSpot> a, List<FlSpot> b, double t) {
   }
 }
 
-List<HorizontalLine> lerpHorizontalLineList(List<HorizontalLine> a, List<HorizontalLine> b, double t) {
+List<HorizontalLine> lerpHorizontalLineList(
+    List<HorizontalLine> a, List<HorizontalLine> b, double t) {
   if (a != null && b != null && a.length == b.length) {
     return List.generate(a.length, (i) {
       return HorizontalLine.lerp(a[i], b[i], t);
@@ -69,7 +69,8 @@ List<VerticalLine> lerpVerticalLineList(List<VerticalLine> a, List<VerticalLine>
   }
 }
 
-List<LineChartBarData> lerpLineChartBarDataList(List<LineChartBarData> a, List<LineChartBarData> b, double t) {
+List<LineChartBarData> lerpLineChartBarDataList(
+    List<LineChartBarData> a, List<LineChartBarData> b, double t) {
   if (a != null && b != null && a.length == b.length) {
     return List.generate(a.length, (i) {
       return LineChartBarData.lerp(a[i], b[i], t);
@@ -79,7 +80,8 @@ List<LineChartBarData> lerpLineChartBarDataList(List<LineChartBarData> a, List<L
   }
 }
 
-List<BetweenBarsData> lerpBetweenBarsDataList(List<BetweenBarsData> a, List<BetweenBarsData> b, double t) {
+List<BetweenBarsData> lerpBetweenBarsDataList(
+    List<BetweenBarsData> a, List<BetweenBarsData> b, double t) {
   if (a != null && b != null && a.length == b.length) {
     return List.generate(a.length, (i) {
       return BetweenBarsData.lerp(a[i], b[i], t);
@@ -89,7 +91,8 @@ List<BetweenBarsData> lerpBetweenBarsDataList(List<BetweenBarsData> a, List<Betw
   }
 }
 
-List<BarChartGroupData> lerpBarChartGroupDataList(List<BarChartGroupData> a, List<BarChartGroupData> b, double t) {
+List<BarChartGroupData> lerpBarChartGroupDataList(
+    List<BarChartGroupData> a, List<BarChartGroupData> b, double t) {
   if (a != null && b != null && a.length == b.length) {
     return List.generate(a.length, (i) {
       return BarChartGroupData.lerp(a[i], b[i], t);
@@ -99,7 +102,8 @@ List<BarChartGroupData> lerpBarChartGroupDataList(List<BarChartGroupData> a, Lis
   }
 }
 
-List<BarChartRodData> lerpBarChartRodDataList(List<BarChartRodData> a, List<BarChartRodData> b, double t) {
+List<BarChartRodData> lerpBarChartRodDataList(
+    List<BarChartRodData> a, List<BarChartRodData> b, double t) {
   if (a != null && b != null && a.length == b.length) {
     return List.generate(a.length, (i) {
       return BarChartRodData.lerp(a[i], b[i], t);
@@ -109,7 +113,8 @@ List<BarChartRodData> lerpBarChartRodDataList(List<BarChartRodData> a, List<BarC
   }
 }
 
-List<PieChartSectionData> lerpPieChartSectionDataList(List<PieChartSectionData> a, List<PieChartSectionData> b, double t) {
+List<PieChartSectionData> lerpPieChartSectionDataList(
+    List<PieChartSectionData> a, List<PieChartSectionData> b, double t) {
   if (a != null && b != null && a.length == b.length) {
     return List.generate(a.length, (i) {
       return PieChartSectionData.lerp(a[i], b[i], t);
@@ -128,12 +133,34 @@ List<ScatterSpot> lerpScatterSpotList(List<ScatterSpot> a, List<ScatterSpot> b,
     return b;
   }
 }
-List<BarChartRodStackItem> lerpBarChartRodStackList(List<BarChartRodStackItem> a, List<BarChartRodStackItem> b, double t) {
+
+List<BarChartRodStackItem> lerpBarChartRodStackList(
+    List<BarChartRodStackItem> a, List<BarChartRodStackItem> b, double t) {
   if (a != null && b != null && a.length == b.length) {
     return List.generate(a.length, (i) {
       return BarChartRodStackItem.lerp(a[i], b[i], t);
     });
   } else {
     return b;
   }
-}
+}
+
+List<RadarEntry> lerpRadarEntryList(List<RadarEntry> a, List<RadarEntry> b, double t) {
+  if (a != null && b != null && a.length == b.length) {
+    return List.generate(a.length, (i) {
+      return RadarEntry.lerp(a[i], b[i], t);
+    });
+  } else {
+    return b;
+  }
+}
+
+List<RadarDataSet> lerpRadarDataSetList(List<RadarDataSet> a, List<RadarDataSet> b, double t) {
+  if (a != null && b != null && a.length == b.length) {
+    return List.generate(a.length, (i) {
+      return RadarDataSet.lerp(a[i], b[i], t);
+    });
+  } else {
+    return b;
+  }
+}