Squashed commit of the following:

commit adb8d1dc2b07764dfe5ee35e3bf5e96fcda03d7f
Author: vld-codra <v.ledu@codra.fr>
Date:   Thu Jan 4 17:25:41 2024 +0100

    small_tool_changes

commit 67bc40b2e17426ff69c0622c2d6501e4b753ed7e
Author: vld-codra <v.ledu@codra.fr>
Date:   Fri Dec 29 16:28:33 2023 +0100

    new icons and small fixes

commit 92398fca19efd89c7204ee5d67fcc948176986cf
Author: vld-codra <v.ledu@codra.fr>
Date:   Fri Dec 29 11:20:17 2023 +0100

    Squashed commit of the following:

    commit 2acc393c5087961ef5627293ed7549580f1969c5
    Author: vld-codra <v.ledu@codra.fr>
    Date:   Fri Dec 29 11:17:17 2023 +0100

        edit point tool

    commit dceec0513f95316d3c3ac6cf6f83a92c720ad8fa
    Author: vld-codra <v.ledu@codra.fr>
    Date:   Thu Dec 21 18:05:41 2023 +0100

        remove file after name change

    commit cd11fe68c28aeaf0773b6bc9084e889b45f401e0
    Author: vld-codra <v.ledu@codra.fr>
    Date:   Thu Dec 21 18:05:10 2023 +0100

        Numerous updates, still work in progress

    commit c8c6f47406cd1aca9364d287b13d4999ad0714b3
    Author: vld-codra <v.ledu@codra.fr>
    Date:   Mon Dec 18 16:17:26 2023 +0100

        basic imlementation of curve decimation

commit 72f293f87cfe3f9730f6a3d6b22c03aa91807c09
Author: vld-codra <v.ledu@codra.fr>
Date:   Mon Dec 18 14:34:12 2023 +0100

    reduce number of points for editing points

commit 6b06799b1b1706049aacf45d04efd7c52ef19769
Author: vld-codra <v.ledu@codra.fr>
Date:   Mon Dec 18 14:26:49 2023 +0100

    new edit point tool

Author: vld-codra

.vscode/settings.json

@@ -38,4 +38,5 @@
         "plotpy"
     ],
     "python.analysis.autoFormatStrings": true,
+    "python.analysis.typeCheckingMode": "basic",
 }

plotpy/images/curve_downsample.png

@@ -50,7 +50,7 @@ class CurveParam(DataSet):
     # )
     downsampling_factor = IntItem(_("Downsampling factor"), default=10, min=1)
 
-    def update_param(self, curve: CurveItem):
+    def update_param(self, curve: CurveItem | PolygonMapItem):
         """
 
         :param curve:
@@ -66,6 +66,8 @@ def update_item(self, curve: CurveItem | PolygonMapItem):
 
         :param curve:
         """
+        curve.update_data()
+
         plot = curve.plot()
         if plot is not None:
             plot.blockSignals(True)  # Avoid unwanted calls of update_param

plotpy/images/curve_downsample2.png

@@ -15,7 +15,7 @@
 
 from plotpy.tests import vistools as ptv
 from plotpy.tests.features.test_auto_curve_image import make_curve_image_legend
-from plotpy.tools.curve import EditPointTool
+from plotpy.tools.curve import DownSampleCurveTool, EditPointTool, SelectPointsTool
 
 
 def test_baseplot_api():
@@ -24,8 +24,13 @@ def test_baseplot_api():
         items = make_curve_image_legend()
         win = ptv.show_items(items, wintitle=test_baseplot_api.__doc__)
         plot = win.get_plot()
+        plot.manager.add_tool(SelectPointsTool)
         plot.manager.add_tool(EditPointTool)
+        plot.manager.add_tool(DownSampleCurveTool)  # noqa: F821
         plot.get_default_item()
+        plot.manager.add_tool(SelectPointsTool)
+        plot.manager.add_tool(EditPointTool)
+        plot.manager.add_tool(DownsampleCurveTool)
         title = "Test title"
         plot.set_title(title)
         assert plot.get_title() == title

plotpy/images/edit_point_selection.png

@@ -34,7 +34,7 @@
 from .curve import (
     AntiAliasingTool,
     CurveStatsTool,
-    DownsampleCurveTool,
+    DownSampleCurveTool,
     EditPointTool,
     SelectPointsTool,
     SelectPointTool,