diff --git a/components/tachart/demo/3d/main.lfm b/components/tachart/demo/3d/main.lfm
index f2c95bd455..9159238ef7 100644
--- a/components/tachart/demo/3d/main.lfm
+++ b/components/tachart/demo/3d/main.lfm
@@ -10,7 +10,9 @@ object Form1: TForm1
   Position = poScreenCenter
   LCLVersion = '0.9.27'
   object Chart1: TChart
+    Left = 0
     Height = 300
+    Top = 0
     Width = 560
     BottomAxis.Grid.Style = psDot
     BottomAxis.Grid.Visible = True
@@ -42,10 +44,8 @@ object Form1: TForm1
       Depth = 10
       SeriesColor = clMaroon
     end
-    object Chart1BarSeries3: TBarSeries
+    object Chart1LineSeries1: TLineSeries
       ZPosition = 50
-      BarBrush.Color = clBlue
-      BarWidthPercent = 50
       Depth = 10
       SeriesColor = clBlue
     end
diff --git a/components/tachart/demo/3d/main.lrs b/components/tachart/demo/3d/main.lrs
index 8a007c2d10..4f052ba52f 100644
--- a/components/tachart/demo/3d/main.lrs
+++ b/components/tachart/demo/3d/main.lrs
@@ -4,17 +4,17 @@ LazarusResources.Add('TForm1','FORMDATA',[
   'TPF0'#6'TForm1'#5'Form1'#4'Left'#3'>'#1#6'Height'#3','#1#3'Top'#3#150#0#5'Wi'
   +'dth'#3'0'#2#7'Caption'#6#5'Form1'#12'ClientHeight'#3','#1#11'ClientWidth'#3
   +'0'#2#8'OnCreate'#7#10'FormCreate'#8'Position'#7#14'poScreenCenter'#10'LCLVe'
-  +'rsion'#6#6'0.9.27'#0#6'TChart'#6'Chart1'#6'Height'#3','#1#5'Width'#3'0'#2#21
-  +'BottomAxis.Grid.Style'#7#5'psDot'#23'BottomAxis.Grid.Visible'#9#5'Depth'#2
-  +'2'#16'Foot.Brush.Color'#7#9'clBtnFace'#15'Foot.Font.Color'#7#6'clBlue'#13'F'
-  +'rame.Visible'#9#19'LeftAxis.Grid.Style'#7#5'psDot'#21'LeftAxis.Grid.Visible'
-  +#9#20'LeftAxis.Title.Angle'#2'Z'#17'Title.Brush.Color'#7#9'clBtnFace'#16'Tit'
-  +'le.Font.Color'#7#6'clBlue'#18'Title.Text.Strings'#1#6#7'TAChart'#0#5'Align'
-  +#7#8'alClient'#11'ParentColor'#8#0#10'TBarSeries'#16'Chart1BarSeries1'#9'ZPo'
-  +'sition'#2#10#14'BarBrush.Color'#7#6'clTeal'#15'BarWidthPercent'#2'2'#5'Dept'
-  +'h'#2#10#11'SeriesColor'#7#6'clTeal'#0#0#10'TBarSeries'#16'Chart1BarSeries2'
-  +#9'ZPosition'#2#30#14'BarBrush.Color'#7#8'clMaroon'#15'BarWidthPercent'#2'2'
-  +#5'Depth'#2#10#11'SeriesColor'#7#8'clMaroon'#0#0#10'TBarSeries'#16'Chart1Bar'
-  +'Series3'#9'ZPosition'#2'2'#14'BarBrush.Color'#7#6'clBlue'#15'BarWidthPercen'
-  +'t'#2'2'#5'Depth'#2#10#11'SeriesColor'#7#6'clBlue'#0#0#0#0
+  +'rsion'#6#6'0.9.27'#0#6'TChart'#6'Chart1'#4'Left'#2#0#6'Height'#3','#1#3'Top'
+  +#2#0#5'Width'#3'0'#2#21'BottomAxis.Grid.Style'#7#5'psDot'#23'BottomAxis.Grid'
+  +'.Visible'#9#5'Depth'#2'2'#16'Foot.Brush.Color'#7#9'clBtnFace'#15'Foot.Font.'
+  +'Color'#7#6'clBlue'#13'Frame.Visible'#9#19'LeftAxis.Grid.Style'#7#5'psDot'#21
+  +'LeftAxis.Grid.Visible'#9#20'LeftAxis.Title.Angle'#2'Z'#17'Title.Brush.Color'
+  +#7#9'clBtnFace'#16'Title.Font.Color'#7#6'clBlue'#18'Title.Text.Strings'#1#6#7
+  +'TAChart'#0#5'Align'#7#8'alClient'#11'ParentColor'#8#0#10'TBarSeries'#16'Cha'
+  +'rt1BarSeries1'#9'ZPosition'#2#10#14'BarBrush.Color'#7#6'clTeal'#15'BarWidth'
+  +'Percent'#2'2'#5'Depth'#2#10#11'SeriesColor'#7#6'clTeal'#0#0#10'TBarSeries'
+  +#16'Chart1BarSeries2'#9'ZPosition'#2#30#14'BarBrush.Color'#7#8'clMaroon'#15
+  +'BarWidthPercent'#2'2'#5'Depth'#2#10#11'SeriesColor'#7#8'clMaroon'#0#0#11'TL'
+  +'ineSeries'#17'Chart1LineSeries1'#9'ZPosition'#2'2'#5'Depth'#2#10#11'SeriesC'
+  +'olor'#7#6'clBlue'#0#0#0#0
 ]);
diff --git a/components/tachart/demo/3d/main.pas b/components/tachart/demo/3d/main.pas
index 8ac9683fd8..53a44c2a5b 100644
--- a/components/tachart/demo/3d/main.pas
+++ b/components/tachart/demo/3d/main.pas
@@ -16,7 +16,7 @@ type
     Chart1: TChart;
     Chart1BarSeries1: TBarSeries;
     Chart1BarSeries2: TBarSeries;
-    Chart1BarSeries3: TBarSeries;
+    Chart1LineSeries1: TLineSeries;
     procedure FormCreate(Sender: TObject);
   end;
 
@@ -35,7 +35,7 @@ begin
   for i := 1 to 7 do begin
     Chart1BarSeries1.AddXY(i, Random(8) + 4);
     Chart1BarSeries2.AddXY(i, Random(8) + 4);
-    Chart1BarSeries3.AddXY(i, Random(8) + 4);
+    Chart1LineSeries1.AddXY(i, Random(8) + 4);
   end;
 end;
 
diff --git a/components/tachart/taseries.pas b/components/tachart/taseries.pas
index 79103115ec..31e36cf827 100644
--- a/components/tachart/taseries.pas
+++ b/components/tachart/taseries.pas
@@ -256,6 +256,7 @@ type
     property XGraphMax;
     property YGraphMax;
   published
+    property Depth;
     property OnDrawPointer: TSeriesPointerDrawEvent
       read FOnDrawPointer write FOnDrawPointer;
     property Pointer: TSeriesPointer read FPointer write SetPointer;
@@ -660,6 +661,7 @@ var
 
 var
   i: Integer;
+  c: TColor;
 begin
   if Count = 0 then exit;
 
@@ -672,8 +674,17 @@ begin
 
     if PrepareLine then begin
       ACanvas.Pen.Style := FStyle;
-      ACanvas.Pen.Color := PChartCoord(FCoordList[i])^.Color;
-      ACanvas.Line(i1, i2);
+      c := PChartCoord(FCoordList[i])^.Color;
+      if Depth = 0 then begin
+        ACanvas.Pen.Color := c;
+        ACanvas.Line(i1, i2);
+      end
+      else begin
+        ACanvas.Brush.Style := bsSolid;
+        ACanvas.Pen.Color := clBlack;
+        ACanvas.Brush.Color := c;
+        DrawLineDepth(ACanvas, i1, i2, Depth);
+      end;
     end;
     DrawPoint(i);
   end;