Python kivy.graphics.transformation.Matrix() Examples

The following are 30 code examples of kivy.graphics.transformation.Matrix(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module kivy.graphics.transformation , or try the search function .
Example #1
Source File: viewer.py    From kivy-smoothie-host with GNU General Public License v3.0 6 votes vote down vote up 
def clear(self):
        self.app.unbind(wpos=self.update_tool)

        if self.li:
            self.remove_widget(self.li)
            self.li = None

        if self.select_mode:
            self.stop_cursor(0, 0)
            self.select_mode = False
            self.ids.select_mode_but.state = 'normal'

        self.valid = False
        self.is_visible = False
        self.canv.clear()
        self.ids.surface.canvas.remove(self.canv)

        self.last_target_layer = 0
        # reset scale and translation
        m = Matrix()
        m.identity()
        self.ids.surface.transform = m
        # not sure why we need to do this
        self.ids.surface.top = Window.height
Example #2
Source File: main.py    From pi-scan with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
def zoomZero(self):
    try:
      zeroScale = self.odd.height / self.scatter.height
      oldScale = self.scatter.scale
      self.scatter.transform = Matrix()
      self.scatter.scale = zeroScale
    except Exception as e:
      handleCrash(e)
Example #3
Source File: __init__.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def get_window_matrix(self, x=0, y=0):
        m = Matrix()
        m.translate(x, y, 0)
        return m
Example #4
Source File: scatter.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def _set_rotation(self, rotation):
        angle_change = self.rotation - rotation
        r = Matrix().rotate(-radians(angle_change), 0, 0, 1)
        self.apply_transform(r, post_multiply=True,
                             anchor=self.to_local(*self.center))
Example #5
Source File: scatter.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def _set_scale(self, scale):
        rescale = scale * 1.0 / self.scale
        self.apply_transform(Matrix().scale(rescale, rescale, rescale),
                             post_multiply=True,
                             anchor=self.to_local(*self.center))
Example #6
Source File: scatter.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def _set_pos(self, pos):
        _pos = self.bbox[0]
        if pos == _pos:
            return
        t = Vector(*pos) - _pos
        trans = Matrix().translate(t.x, t.y, 0)
        self.apply_transform(trans)
Example #7
Source File: scatter.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def apply_transform(self, trans, post_multiply=False, anchor=(0, 0)):
        '''
        Transforms the scatter by applying the "trans" transformation
        matrix (on top of its current transformation state). The resultant
        matrix can be found in the :attr:`~Scatter.transform` property.

        :Parameters:
            `trans`: :class:`~kivy.graphics.transformation.Matrix`.
                Transformation matix to be applied to the scatter widget.
            `anchor`: tuple, defaults to (0, 0).
                The point to use as the origin of the transformation
                (uses local widget space).
            `post_multiply`: bool, defaults to False.
                If True, the transform matrix is post multiplied
                (as if applied before the current transform).

        Usage example::

            from kivy.graphics.transformation import Matrix
            mat = Matrix().scale(3, 3, 3)
            scatter_instance.apply_transform(mat)

        '''
        t = Matrix().translate(anchor[0], anchor[1], 0)
        t = t.multiply(trans)
        t = t.multiply(Matrix().translate(-anchor[0], -anchor[1], 0))

        if post_multiply:
            self.transform = self.transform.multiply(t)
        else:
            self.transform = t.multiply(self.transform)
Example #8
Source File: widget.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def get_window_matrix(self, x=0, y=0):
        '''Calculate the transformation matrix to convert between window and
        widget coordinates.

        :Parameters:
            `x`: float, defaults to 0
                Translates the matrix on the x axis.
            `y`: float, defaults to 0
                Translates the matrix on the y axis.
        '''
        m = Matrix()
        m.translate(self.x + x, self.y + y, 0)
        m = self._apply_transform(m)
        return m
Example #9
Source File: __init__.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def get_window_matrix(self, x=0, y=0):
        m = Matrix()
        m.translate(x, y, 0)
        return m
Example #10
Source File: widget.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def get_window_matrix(self, x=0, y=0):
        '''Calculate the transformation matrix to convert between window and
        widget coordinates.

        :Parameters:
            `x`: float, defaults to 0
                Translates the matrix on the x axis.
            `y`: float, defaults to 0
                Translates the matrix on the y axis.
        '''
        m = Matrix()
        m.translate(self.x + x, self.y + y, 0)
        m = self._apply_transform(m)
        return m
Example #11
Source File: main.py    From pi-scan with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
def moveUp(self):
    try:
      self.scatter.apply_transform(Matrix().translate(x=0,y=-100/self.scatter.scale,z=0))
    except Exception as e:
      handleCrash(e)
Example #12
Source File: main.py    From pi-scan with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
def moveDown(self):
    try:
      self.scatter.apply_transform(Matrix().translate(x=0,y=100/self.scatter.scale,z=0))
    except Exception as e:
      handleCrash(e)
Example #13
Source File: main.py    From pi-scan with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
def moveLeft(self):
    try:
      self.scatter.apply_transform(Matrix().translate(x=100/self.scatter.scale,y=0,z=0))
    except Exception as e:
      handleCrash(e)
Example #14
Source File: main.py    From pi-scan with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
def moveRight(self):
    try:
      self.scatter.apply_transform(Matrix().translate(x=-100/self.scatter.scale,y=0,z=0))
    except Exception as e:
      handleCrash(e)
Example #15
Source File: view.py    From pydelhi_mobile with GNU Affero General Public License v3.0 5 votes vote down vote up 
def set_zoom_at(self, zoom, x, y, scale=None):
        """Sets the zoom level, leaving the (x, y) at the exact same point
        in the view.
        """
        zoom = clamp(zoom,
                     self.map_source.get_min_zoom(),
                     self.map_source.get_max_zoom())
        if int(zoom) == int(self._zoom):
            if scale is None:
                return
            elif scale == self.scale:
                return
        scale = scale or 1.

        # first, rescale the scatter
        scatter = self._scatter
        scale = clamp(scale, scatter.scale_min, scatter.scale_max)
        rescale = scale * 1.0 / scatter.scale
        scatter.apply_transform(Matrix().scale(rescale, rescale, rescale),
                                post_multiply=True,
                                anchor=scatter.to_local(x, y))

        # adjust position if the zoom changed
        c1 = self.map_source.get_col_count(self._zoom)
        c2 = self.map_source.get_col_count(zoom)
        if c1 != c2:
            f = float(c2) / float(c1)
            self.delta_x = scatter.x + self.delta_x * f
            self.delta_y = scatter.y + self.delta_y * f
            # back to 0 every time
            scatter.apply_transform(Matrix().translate(
                -scatter.x, -scatter.y, 0
            ), post_multiply=True)

        # avoid triggering zoom changes.
        self._zoom = zoom
        self.zoom = self._zoom
Example #16
Source File: view.py    From pydelhi_mobile with GNU Affero General Public License v3.0 5 votes vote down vote up 
def scale_at(self, scale, x, y):
        scatter = self._scatter
        scale = clamp(scale, scatter.scale_min, scatter.scale_max)
        rescale = scale * 1.0 / scatter.scale
        scatter.apply_transform(Matrix().scale(rescale, rescale, rescale),
                                post_multiply=True,
                                anchor=scatter.to_local(x, y))
Example #17
Source File: analysismap.py    From RaceCapture_App with GNU General Public License v3.0 5 votes vote down vote up 
def on_center_map(self, *args):
        """
        Restore the track map to the default position/zoom/rotation
        """
        scatter = self.ids.scatter
        scatter.scale = 1
        scatter.rotation = 0
        scatter.transform = Matrix().translate(self.pos[0], self.pos[1], 0)
Example #18
Source File: view.py    From garden.mapview with MIT License 5 votes vote down vote up 
def set_zoom_at(self, zoom, x, y, scale=None):
        """Sets the zoom level, leaving the (x, y) at the exact same point
        in the view.
        """
        zoom = clamp(zoom,
                     self.map_source.get_min_zoom(),
                     self.map_source.get_max_zoom())
        if int(zoom) == int(self._zoom):
            if scale is None:
                return
            elif scale == self.scale:
                return
        scale = scale or 1.

        # first, rescale the scatter
        scatter = self._scatter
        scale = clamp(scale, scatter.scale_min, scatter.scale_max)
        rescale = scale * 1.0 / scatter.scale
        scatter.apply_transform(Matrix().scale(rescale, rescale, rescale),
                                post_multiply=True,
                                anchor=scatter.to_local(x, y))

        # adjust position if the zoom changed
        c1 = self.map_source.get_col_count(self._zoom)
        c2 = self.map_source.get_col_count(zoom)
        if c1 != c2:
            f = float(c2) / float(c1)
            self.delta_x = scatter.x + self.delta_x * f
            self.delta_y = scatter.y + self.delta_y * f
            # back to 0 every time
            scatter.apply_transform(Matrix().translate(
                -scatter.x, -scatter.y, 0
            ), post_multiply=True)

        # avoid triggering zoom changes.
        self._zoom = zoom
        self.zoom = self._zoom
Example #19
Source File: viewer.py    From kivy-smoothie-host with GNU General Public License v3.0 5 votes vote down vote up 
def on_touch_down(self, touch):
        #print(self.ids.surface.bbox)
        if self.ids.view_window.collide_point(touch.x, touch.y):
            # if within the scatter window
            if self.select_mode:
                touch.grab(self)
                return True

            elif touch.is_mouse_scrolling:
                # Allow mouse scroll wheel to zoom in/out
                if touch.button == 'scrolldown':
                    # zoom in
                    if self.ids.surface.scale < 100:
                        rescale = 1.1
                        self.ids.surface.apply_transform(Matrix().scale(rescale, rescale, rescale), post_multiply=True, anchor=self.ids.surface.to_widget(*touch.pos))

                elif touch.button == 'scrollup':
                    # zoom out
                    if self.ids.surface.scale > 0.01:
                        rescale = 0.8
                        self.ids.surface.apply_transform(Matrix().scale(rescale, rescale, rescale), post_multiply=True, anchor=self.ids.surface.to_widget(*touch.pos))

                self.moved(None, touch)
                return True

        return super(GcodeViewerScreen, self).on_touch_down(touch)
Example #20
Source File: view.py    From PyCon-Mobile-App with GNU General Public License v3.0 5 votes vote down vote up 
def set_zoom_at(self, zoom, x, y, scale=None):
        """Sets the zoom level, leaving the (x, y) at the exact same point
        in the view.
        """
        zoom = clamp(zoom,
                     self.map_source.get_min_zoom(),
                     self.map_source.get_max_zoom())
        if int(zoom) == int(self._zoom):
            if scale is None:
                return
            elif scale == self.scale:
                return
        scale = scale or 1.

        # first, rescale the scatter
        scatter = self._scatter
        scale = clamp(scale, scatter.scale_min, scatter.scale_max)
        rescale = scale * 1.0 / scatter.scale
        scatter.apply_transform(Matrix().scale(rescale, rescale, rescale),
                                post_multiply=True,
                                anchor=scatter.to_local(x, y))

        # adjust position if the zoom changed
        c1 = self.map_source.get_col_count(self._zoom)
        c2 = self.map_source.get_col_count(zoom)
        if c1 != c2:
            f = float(c2) / float(c1)
            self.delta_x = scatter.x + self.delta_x * f
            self.delta_y = scatter.y + self.delta_y * f
            # back to 0 every time
            scatter.apply_transform(Matrix().translate(
                -scatter.x, -scatter.y, 0
            ), post_multiply=True)

        # avoid triggering zoom changes.
        self._zoom = zoom
        self.zoom = self._zoom
Example #21
Source File: view.py    From PyCon-Mobile-App with GNU General Public License v3.0 5 votes vote down vote up 
def scale_at(self, scale, x, y):
        scatter = self._scatter
        scale = clamp(scale, scatter.scale_min, scatter.scale_max)
        rescale = scale * 1.0 / scatter.scale
        scatter.apply_transform(Matrix().scale(rescale, rescale, rescale),
                                post_multiply=True,
                                anchor=scatter.to_local(x, y))
Example #22
Source File: simulationCanvas.py    From GroundControl with GNU General Public License v3.0 5 votes vote down vote up 
def moveToCenter(self, *args):
        
        
        #This moves the simulation onto the screen, I would love if it were centered
        #but for now it doesn't adapt to screen size (Window.width, Window.height)
        
        moveVertical = self.bedHeight/1.4
        moveHorizontal = self.bedWidth/1.4
        
        mat = Matrix().translate(moveHorizontal, moveVertical, 0)
        self.scatterInstance.apply_transform(mat)
        
        #scale it down to fit on the screen
        self.scatterInstance.apply_transform(Matrix().scale(.3, .3, 1))
Example #23
Source File: simulationCanvas.py    From GroundControl with GNU General Public License v3.0 5 votes vote down vote up 
def setInitialZoom(self):
        mat = Matrix().scale(.4, .4, 1)
        self.scatterInstance.apply_transform(mat, (0,0))

        mat = Matrix().translate(200, 100, 0)
        self.scatterInstance.apply_transform(mat)
Example #24
Source File: simulationCanvas.py    From GroundControl with GNU General Public License v3.0 5 votes vote down vote up 
def zoomCanvas(self, touch):
        if touch.is_mouse_scrolling:
            scaleFactor = .1

            if touch.button == 'scrollup':
                mat = Matrix().scale(1-scaleFactor, 1-scaleFactor, 1)
                self.scatterInstance.apply_transform(mat, anchor = touch.pos)
            elif touch.button == 'scrolldown':
                mat = Matrix().scale(1+scaleFactor, 1+scaleFactor, 1)
                self.scatterInstance.apply_transform(mat, anchor = touch.pos)
Example #25
Source File: gcodeCanvas.py    From GroundControl with GNU General Public License v3.0 5 votes vote down vote up 
def centerCanvas(self, *args):
        '''
        
        Return the canvas to the center of the screen.
        
        '''
        mat = Matrix().translate(Window.width/2, Window.height/2, 0)
        self.scatterInstance.transform = mat
        
        anchor = (0,0)
        scale = self.data.config.get('Ground Control Settings', 'viewScale')
        mat = Matrix().scale(dp(scale), dp(scale), 1)

        self.scatterInstance.apply_transform(mat, anchor)
Example #26
Source File: scatter.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def apply_transform(self, trans, post_multiply=False, anchor=(0, 0)):
        '''
        Transforms the scatter by applying the "trans" transformation
        matrix (on top of its current transformation state). The resultant
        matrix can be found in the :attr:`~Scatter.transform` property.

        :Parameters:
            `trans`: :class:`~kivy.graphics.transformation.Matrix`.
                Transformation matix to be applied to the scatter widget.
            `anchor`: tuple, defaults to (0, 0).
                The point to use as the origin of the transformation
                (uses local widget space).
            `post_multiply`: bool, defaults to False.
                If True, the transform matrix is post multiplied
                (as if applied before the current transform).

        Usage example::

            from kivy.graphics.transformation import Matrix
            mat = Matrix().scale(3, 3, 3)
            scatter_instance.apply_transform(mat)

        '''
        t = Matrix().translate(anchor[0], anchor[1], 0)
        t = t.multiply(trans)
        t = t.multiply(Matrix().translate(-anchor[0], -anchor[1], 0))

        if post_multiply:
            self.transform = self.transform.multiply(t)
        else:
            self.transform = t.multiply(self.transform)
Example #27
Source File: view.py    From garden.mapview with MIT License 5 votes vote down vote up 
def scale_at(self, scale, x, y):
        scatter = self._scatter
        scale = clamp(scale, scatter.scale_min, scatter.scale_max)
        rescale = scale * 1.0 / scatter.scale
        scatter.apply_transform(Matrix().scale(rescale, rescale, rescale),
                                post_multiply=True,
                                anchor=scatter.to_local(x, y))
Example #28
Source File: generalelements.py    From Snu-Photo-Manager with GNU Lesser General Public License v3.0 5 votes vote down vote up 
def on_bypass(self, instance, bypass):
        if bypass:
            self.transform = Matrix()
Example #29
Source File: scatter.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def _set_rotation(self, rotation):
        angle_change = self.rotation - rotation
        r = Matrix().rotate(-radians(angle_change), 0, 0, 1)
        self.apply_transform(r, post_multiply=True,
                             anchor=self.to_local(*self.center))
Example #30
Source File: scatter.py    From Tickeys-linux with MIT License 5 votes vote down vote up 
def _set_scale(self, scale):
        rescale = scale * 1.0 / self.scale
        self.apply_transform(Matrix().scale(rescale, rescale, rescale),
                             post_multiply=True,
                             anchor=self.to_local(*self.center))