change some normal attribute for kivy property attribute. These attribute can now be set in Kv directly. Add matplotib formatter to cursor values display.

update twinx exmple nd scatter example.

Author: mp-007

example_all_interactive_options/graph_widget.py

@@ -53,7 +53,10 @@ class MatplotFigure(Widget):
     do_pan_x = BooleanProperty(True)
     do_pan_y = BooleanProperty(True)    
     do_zoom_x = BooleanProperty(True)
-    do_zoom_y = BooleanProperty(True)    
+    do_zoom_y = BooleanProperty(True)  
+    fast_draw = BooleanProperty(True) #True will don't draw axis
+    xsorted = BooleanProperty(False) #to manage x sorted data
+    minzoom = NumericProperty(dp(40))
 
     def on_figure(self, obj, value):
         self.figcanvas = _FigureCanvas(self.figure, self)
@@ -94,15 +97,13 @@ def __init__(self, **kwargs):
         self.xmax = None
         self.ymin = None
         self.ymax = None
+        self.lines = []
 
         #option
-        self.zoompan = None
-        self.fast_draw=True
-        self.draw_left_spline=False #available only when fast_draw is True
         self.touch_mode='pan'
         self.hover_on = False
-        self.xsorted = False #to manage x sorted data
-        self.minzoom = dp(40) #minimum pixel distance to apply zoom
+        self.cursor_xaxis_formatter=None #used matplotlib formatter to display x cursor value
+        self.cursor_yaxis_formatter=None #used matplotlib formatter to display y cursor value
 
         #zoom box coordonnate
         self.x0_box = None
@@ -246,6 +247,10 @@ def hover(self, event) -> None:
                 self.vertical_line.set_xdata(x)
 
                 #x y label
+                if self.cursor_xaxis_formatter:
+                    x = self.cursor_xaxis_formatter.format_data(x)
+                if self.cursor_yaxis_formatter:
+                    y = self.cursor_yaxis_formatter.format_data(y)                    
                 self.text.set_text(f"x={x}, y={y}")
 
                 #blit method (always use because same visual effect as draw)                  
@@ -481,7 +486,7 @@ def on_touch_down(self, event):
         """ Manage Mouse/touch press """
         x, y = event.x, event.y
 
-        if self.collide_point(x, y):
+        if self.collide_point(x, y) and self.figure:
             if self.legend_instance:
                 if self.legend_instance.box.collide_point(x, y):
                     if self.touch_mode!='drag_legend':
@@ -586,7 +591,7 @@ def on_touch_up(self, event):
                 return True
 
         # stop propagating if its within our bounds
-        if self.collide_point(x, y):
+        if self.collide_point(x, y) and self.figure:
 
             if self.do_update:
                 self.update_lim()            
@@ -909,6 +914,7 @@ def draw_box(self, event, x0, y0, x1, y1) -> None:
             x1=x0_max[0][0]+pos_x
 
             self._alpha_ver=1
+            self._alpha_hor=0
 
         elif abs(y1-y0)<dp(20) and abs(x1-x0)>self.minzoom:
             self.pos_x_rect_hor=x0
@@ -921,6 +927,7 @@ def draw_box(self, event, x0, y0, x1, y1) -> None:
             y1=y0_max[0][1]+pos_y         
 
             self._alpha_hor=1
+            self._alpha_ver=0
 
         else:
             self._alpha_hor=0   

example_all_interactive_options/main.py

@@ -84,6 +84,8 @@
                     app.set_zoom_behavior('zoom_y',self.state)                      
         MatplotFigure:
             id:figure_wgt
+            #update axis during pan/zoom
+            fast_draw:False
 '''
 
 
@@ -98,7 +100,6 @@ def on_start(self, *args):
         mygraph = GraphGenerator()
 
         self.screen.figure_wgt.figure = mygraph.fig
-        self.screen.figure_wgt.fast_draw = False #update axis during pan/zoom
 
         #register lines instance if need to be update
         self.lines.append(mygraph.line1)

example_basic/graph_widget.py

@@ -53,7 +53,10 @@ class MatplotFigure(Widget):
     do_pan_x = BooleanProperty(True)
     do_pan_y = BooleanProperty(True)    
     do_zoom_x = BooleanProperty(True)
-    do_zoom_y = BooleanProperty(True)    
+    do_zoom_y = BooleanProperty(True)  
+    fast_draw = BooleanProperty(True) #True will don't draw axis
+    xsorted = BooleanProperty(False) #to manage x sorted data
+    minzoom = NumericProperty(dp(40))
 
     def on_figure(self, obj, value):
         self.figcanvas = _FigureCanvas(self.figure, self)
@@ -94,15 +97,13 @@ def __init__(self, **kwargs):
         self.xmax = None
         self.ymin = None
         self.ymax = None
+        self.lines = []
 
         #option
-        self.zoompan = None
-        self.fast_draw=True
-        self.draw_left_spline=False #available only when fast_draw is True
         self.touch_mode='pan'
         self.hover_on = False
-        self.xsorted = False #to manage x sorted data
-        self.minzoom = dp(40) #minimum pixel distance to apply zoom
+        self.cursor_xaxis_formatter=None #used matplotlib formatter to display x cursor value
+        self.cursor_yaxis_formatter=None #used matplotlib formatter to display y cursor value
 
         #zoom box coordonnate
         self.x0_box = None
@@ -246,6 +247,10 @@ def hover(self, event) -> None:
                 self.vertical_line.set_xdata(x)
 
                 #x y label
+                if self.cursor_xaxis_formatter:
+                    x = self.cursor_xaxis_formatter.format_data(x)
+                if self.cursor_yaxis_formatter:
+                    y = self.cursor_yaxis_formatter.format_data(y)                    
                 self.text.set_text(f"x={x}, y={y}")
 
                 #blit method (always use because same visual effect as draw)                  
@@ -481,7 +486,7 @@ def on_touch_down(self, event):
         """ Manage Mouse/touch press """
         x, y = event.x, event.y
 
-        if self.collide_point(x, y):
+        if self.collide_point(x, y) and self.figure:
             if self.legend_instance:
                 if self.legend_instance.box.collide_point(x, y):
                     if self.touch_mode!='drag_legend':
@@ -586,7 +591,7 @@ def on_touch_up(self, event):
                 return True
 
         # stop propagating if its within our bounds
-        if self.collide_point(x, y):
+        if self.collide_point(x, y) and self.figure:
 
             if self.do_update:
                 self.update_lim()            
@@ -909,6 +914,7 @@ def draw_box(self, event, x0, y0, x1, y1) -> None:
             x1=x0_max[0][0]+pos_x
 
             self._alpha_ver=1
+            self._alpha_hor=0
 
         elif abs(y1-y0)<dp(20) and abs(x1-x0)>self.minzoom:
             self.pos_x_rect_hor=x0
@@ -921,6 +927,7 @@ def draw_box(self, event, x0, y0, x1, y1) -> None:
             y1=y0_max[0][1]+pos_y         
 
             self._alpha_hor=1
+            self._alpha_ver=0
 
         else:
             self._alpha_hor=0   

example_basic/main.py

@@ -51,16 +51,6 @@ def on_start(self, *args):
         mygraph = GraphGenerator()
 
         self.screen.figure_wgt.figure = mygraph.fig
-        self.screen.figure_wgt.axes = mygraph.ax1
-        self.screen.figure_wgt.xmin = mygraph.xmin
-        self.screen.figure_wgt.xmax = mygraph.xmax
-        self.screen.figure_wgt.ymin = mygraph.ymin
-        self.screen.figure_wgt.ymax = mygraph.ymax
-        self.screen.figure_wgt.fast_draw = False #update axis during pan/zoom
-        
-        #register lines instance if need to be update
-        self.lines.append(mygraph.line1)
-        self.lines.append(mygraph.line2)
 
     def set_touch_mode(self,mode):
         self.screen.figure_wgt.touch_mode=mode

example_big_data/graph_widget.py

@@ -53,7 +53,10 @@ class MatplotFigure(Widget):
     do_pan_x = BooleanProperty(True)
     do_pan_y = BooleanProperty(True)    
     do_zoom_x = BooleanProperty(True)
-    do_zoom_y = BooleanProperty(True)    
+    do_zoom_y = BooleanProperty(True)  
+    fast_draw = BooleanProperty(True) #True will don't draw axis
+    xsorted = BooleanProperty(False) #to manage x sorted data
+    minzoom = NumericProperty(dp(40))
 
     def on_figure(self, obj, value):
         self.figcanvas = _FigureCanvas(self.figure, self)
@@ -94,15 +97,13 @@ def __init__(self, **kwargs):
         self.xmax = None
         self.ymin = None
         self.ymax = None
+        self.lines = []
 
         #option
-        self.zoompan = None
-        self.fast_draw=True
-        self.draw_left_spline=False #available only when fast_draw is True
         self.touch_mode='pan'
         self.hover_on = False
-        self.xsorted = False #to manage x sorted data
-        self.minzoom = dp(40) #minimum pixel distance to apply zoom
+        self.cursor_xaxis_formatter=None #used matplotlib formatter to display x cursor value
+        self.cursor_yaxis_formatter=None #used matplotlib formatter to display y cursor value
 
         #zoom box coordonnate
         self.x0_box = None
@@ -246,6 +247,10 @@ def hover(self, event) -> None:
                 self.vertical_line.set_xdata(x)
 
                 #x y label
+                if self.cursor_xaxis_formatter:
+                    x = self.cursor_xaxis_formatter.format_data(x)
+                if self.cursor_yaxis_formatter:
+                    y = self.cursor_yaxis_formatter.format_data(y)                    
                 self.text.set_text(f"x={x}, y={y}")
 
                 #blit method (always use because same visual effect as draw)                  
@@ -481,7 +486,7 @@ def on_touch_down(self, event):
         """ Manage Mouse/touch press """
         x, y = event.x, event.y
 
-        if self.collide_point(x, y):
+        if self.collide_point(x, y) and self.figure:
             if self.legend_instance:
                 if self.legend_instance.box.collide_point(x, y):
                     if self.touch_mode!='drag_legend':
@@ -586,7 +591,7 @@ def on_touch_up(self, event):
                 return True
 
         # stop propagating if its within our bounds
-        if self.collide_point(x, y):
+        if self.collide_point(x, y) and self.figure:
 
             if self.do_update:
                 self.update_lim()            
@@ -909,6 +914,7 @@ def draw_box(self, event, x0, y0, x1, y1) -> None:
             x1=x0_max[0][0]+pos_x
 
             self._alpha_ver=1
+            self._alpha_hor=0
 
         elif abs(y1-y0)<dp(20) and abs(x1-x0)>self.minzoom:
             self.pos_x_rect_hor=x0
@@ -921,6 +927,7 @@ def draw_box(self, event, x0, y0, x1, y1) -> None:
             y1=y0_max[0][1]+pos_y         
 
             self._alpha_hor=1
+            self._alpha_ver=0
 
         else:
             self._alpha_hor=0   

example_big_data/main.py

@@ -50,11 +50,6 @@ def on_start(self, *args):
         mygraph = GraphGenerator()
 
         self.screen.figure_wgt.figure = mygraph.fig
-        self.screen.figure_wgt.axes = mygraph.ax1
-        self.screen.figure_wgt.xmin = mygraph.xmin
-        self.screen.figure_wgt.xmax = mygraph.xmax
-        self.screen.figure_wgt.ymin = mygraph.ymin
-        self.screen.figure_wgt.ymax = mygraph.ymax
 
     def set_touch_mode(self,mode):
         self.screen.figure_wgt.touch_mode=mode

example_cursor/graph_widget.py

@@ -53,7 +53,10 @@ class MatplotFigure(Widget):
     do_pan_x = BooleanProperty(True)
     do_pan_y = BooleanProperty(True)    
     do_zoom_x = BooleanProperty(True)
-    do_zoom_y = BooleanProperty(True)    
+    do_zoom_y = BooleanProperty(True)  
+    fast_draw = BooleanProperty(True) #True will don't draw axis
+    xsorted = BooleanProperty(False) #to manage x sorted data
+    minzoom = NumericProperty(dp(40))
 
     def on_figure(self, obj, value):
         self.figcanvas = _FigureCanvas(self.figure, self)
@@ -94,15 +97,13 @@ def __init__(self, **kwargs):
         self.xmax = None
         self.ymin = None
         self.ymax = None
+        self.lines = []
 
         #option
-        self.zoompan = None
-        self.fast_draw=True
-        self.draw_left_spline=False #available only when fast_draw is True
         self.touch_mode='pan'
         self.hover_on = False
-        self.xsorted = False #to manage x sorted data
-        self.minzoom = dp(40) #minimum pixel distance to apply zoom
+        self.cursor_xaxis_formatter=None #used matplotlib formatter to display x cursor value
+        self.cursor_yaxis_formatter=None #used matplotlib formatter to display y cursor value
 
         #zoom box coordonnate
         self.x0_box = None
@@ -246,6 +247,10 @@ def hover(self, event) -> None:
                 self.vertical_line.set_xdata(x)
 
                 #x y label
+                if self.cursor_xaxis_formatter:
+                    x = self.cursor_xaxis_formatter.format_data(x)
+                if self.cursor_yaxis_formatter:
+                    y = self.cursor_yaxis_formatter.format_data(y)                    
                 self.text.set_text(f"x={x}, y={y}")
 
                 #blit method (always use because same visual effect as draw)                  
@@ -481,7 +486,7 @@ def on_touch_down(self, event):
         """ Manage Mouse/touch press """
         x, y = event.x, event.y
 
-        if self.collide_point(x, y):
+        if self.collide_point(x, y) and self.figure:
             if self.legend_instance:
                 if self.legend_instance.box.collide_point(x, y):
                     if self.touch_mode!='drag_legend':
@@ -586,7 +591,7 @@ def on_touch_up(self, event):
                 return True
 
         # stop propagating if its within our bounds
-        if self.collide_point(x, y):
+        if self.collide_point(x, y) and self.figure:
 
             if self.do_update:
                 self.update_lim()            
@@ -909,6 +914,7 @@ def draw_box(self, event, x0, y0, x1, y1) -> None:
             x1=x0_max[0][0]+pos_x
 
             self._alpha_ver=1
+            self._alpha_hor=0
 
         elif abs(y1-y0)<dp(20) and abs(x1-x0)>self.minzoom:
             self.pos_x_rect_hor=x0
@@ -921,6 +927,7 @@ def draw_box(self, event, x0, y0, x1, y1) -> None:
             y1=y0_max[0][1]+pos_y         
 
             self._alpha_hor=1
+            self._alpha_ver=0
 
         else:
             self._alpha_hor=0   

example_cursor/main.py

@@ -37,6 +37,8 @@
                     self.state='down'                
         MatplotFigure:
             id:figure_wgt
+            #update axis during pan/zoom
+            fast_draw:False
 '''
 
 
@@ -51,8 +53,7 @@ def on_start(self, *args):
         mygraph = GraphGenerator()
 
         self.screen.figure_wgt.figure = mygraph.fig
-        self.screen.figure_wgt.fast_draw = False #update axis during pan/zoom
-        
+
         #register lines instance if need to be update
         self.lines.append(mygraph.line1)
         self.lines.append(mygraph.line2)

example_cursor_scatter_experimental/graph_generator.py

@@ -35,17 +35,12 @@ def __init__(self):
         self.x = [2,4,5,7,6,8,9,11,12,12]
         self.y = [1,2,3,4,5,6,7,8,9,10]
 
-        self.line1 = self.ax1.scatter(self.x, self.y, s=30, color='magenta', alpha=0.7, marker='x', picker=3)
+        self.scatter1 = self.ax1.scatter(self.x, self.y, s=30, color='magenta', alpha=0.7, marker='x', picker=3)
         for i, ptlbl in enumerate(self.ptid):
             self.ax1.annotate(ptlbl, (self.x[i], self.y[i]),xytext=(5,0),textcoords='offset points',size=8,color='darkslategrey')        
-
-        self.xmin,self.xmax = self.ax1.get_xlim()
-        self.ymin,self.ymax = self.ax1.get_ylim()
 
         self.fig.subplots_adjust(left=0.13,top=0.96,right=0.93,bottom=0.2)
- 
-        self.ax1.set_xlim(self.xmin, self.xmax)
-        self.ax1.set_ylim(self.ymin, self.ymax)   
+    
         self.ax1.set_xlabel("axis_x",fontsize=font_size_axis_title)
         self.ax1.set_ylabel("axis_y",fontsize=font_size_axis_title)