Made changed from code review and updated MeshReader plugins to support changes made to Uranium branch MeshReaderDialog. This branch now must be paired with that Uranium branch.

plugins/3MFReader/ThreeMFReader.py

@@ -24,7 +24,7 @@ import xml.etree.ElementTree as ET
 class ThreeMFReader(MeshReader):
     def __init__(self):
         super(ThreeMFReader, self).__init__()
-        self._supported_extension = ".3mf"
+        self._supported_extensions = [".3mf"]
 
         self._namespaces = {
             "3mf": "http://schemas.microsoft.com/3dmanufacturing/core/2015/02",
@@ -33,8 +33,7 @@ class ThreeMFReader(MeshReader):
 
     def read(self, file_name):
         result = None
-        extension = os.path.splitext(file_name)[1]
+
-        if extension.lower() == self._supported_extension:
         result = SceneNode()
         # The base object of 3mf is a zipped archive.
         archive = zipfile.ZipFile(file_name, "r")
@@ -131,4 +130,5 @@ class ThreeMFReader(MeshReader):
                 pass
         except Exception as e:
             Logger.log("e" ,"exception occured in 3mf reader: %s" , e)
+
         return result  

plugins/ImageReader/ConfigUI.qml

@@ -31,36 +31,36 @@ UM.Dialog
         columns: 2
 
         Text {
-            text: catalog.i18nc("@action:label","Size")
+            text: catalog.i18nc("@action:label","Size (mm)")
             Layout.fillWidth:true
         }
         TextField {
             id: size
             focus: true
             validator: DoubleValidator {notation: DoubleValidator.StandardNotation; bottom: 1; top: 500;}
-            text: qsTr("120")
+            text: "120"
             onTextChanged: { manager.onSizeChanged(text) }
         }
 
         Text {
-            text: catalog.i18nc("@action:label","Base Height")
+            text: catalog.i18nc("@action:label","Base Height (mm)")
             Layout.fillWidth:true
         }
         TextField {
             id: base_height
             validator: DoubleValidator {notation: DoubleValidator.StandardNotation; bottom: 0; top: 500;}
-            text: qsTr("2")
+            text: "2"
             onTextChanged: { manager.onBaseHeightChanged(text) }
         }
 
         Text {
-            text: catalog.i18nc("@action:label","Peak Height")
+            text: catalog.i18nc("@action:label","Peak Height (mm)")
             Layout.fillWidth:true
         }
         TextField {
             id: peak_height
             validator: DoubleValidator {notation: DoubleValidator.StandardNotation; bottom: 0; top: 500;}
-            text: qsTr("12")
+            text: "12"
             onTextChanged: { manager.onPeakHeightChanged(text) }
         }
 
@@ -68,11 +68,19 @@ UM.Dialog
             text: catalog.i18nc("@action:label","Smoothing")
             Layout.fillWidth:true
         }
-        TextField {
+        Rectangle {
+            width: 100
+            height: 20
+            color: "transparent"
+
+            Slider {
                 id: smoothing
-            validator: IntValidator {bottom: 0; top: 100;}
+                maximumValue: 100.0
-            text: qsTr("1")
+                stepSize: 1.0
-            onTextChanged: { manager.onSmoothingChanged(text) }
+                value: 1
+                width: 100
+                onValueChanged: { manager.onSmoothingChanged(value) }
+            }
         }
 
         UM.I18nCatalog{id: catalog; name:"ultimaker"}

plugins/ImageReader/ImageReader.py

@@ -1,5 +1,4 @@
 # Copyright (c) 2015 Ultimaker B.V.
-# Copyright (c) 2013 David Braam
 # Cura is released under the terms of the AGPLv3 or higher.
 
 import os
@@ -21,28 +20,17 @@ class ImageReader(MeshReader):
         super(ImageReader, self).__init__()
         self._supported_extensions = [".jpg", ".jpeg", ".bmp", ".gif", ".png"]
         self._ui = ImageReaderUI(self)
-        self._wait = False
+
-        self._canceled = False
+    def preRead(self, file_name):
+        self._ui.showConfigUI()
+        self._ui.waitForUIToClose()
+
+        if self._ui.getCancelled():
+            return MeshReader.PreReadResult.cancelled
+        return MeshReader.PreReadResult.accepted
 
     def read(self, file_name):
-        extension = os.path.splitext(file_name)[1]
+        return self._generateSceneNode(file_name, self._ui.size, self._ui.peak_height, self._ui.base_height, self._ui.smoothing, 512)
-        if extension.lower() in self._supported_extensions:
-            self._ui.showConfigUI()
-            self._wait = True
-            self._canceled = True
-
-            while self._wait:
-                pass
-                # this causes the config window to not repaint...
-                # Job.yieldThread()
-
-            result = None
-            if not self._canceled:
-                result = self._generateSceneNode(file_name, self._ui.size, self._ui.peak_height, self._ui.base_height, self._ui.smoothing, 512)
-
-            return result
-
-        return None
 
     def _generateSceneNode(self, file_name, xz_size, peak_height, base_height, blur_iterations, max_size):
         mesh = None
@@ -99,15 +87,20 @@ class ImageReader(MeshReader):
         Job.yieldThread()
 
         for i in range(0, blur_iterations):
-            ii = blur_iterations-i
+            copy = numpy.pad(height_data, ((1, 1), (1, 1)), mode='edge')
-            copy = numpy.copy(height_data)
 
-            height_data += numpy.roll(copy, ii, axis=0)
+            height_data += copy[1:-1, 2:]
-            height_data += numpy.roll(copy, -ii, axis=0)
+            height_data += copy[1:-1, :-2]
-            height_data += numpy.roll(copy, ii, axis=1)
+            height_data += copy[2:, 1:-1]
-            height_data += numpy.roll(copy, -ii, axis=1)
+            height_data += copy[:-2, 1:-1]
+
+            height_data += copy[2:, 2:]
+            height_data += copy[:-2, 2:]
+            height_data += copy[2:, :-2]
+            height_data += copy[:-2, :-2]
+
+            height_data /= 9
 
-            height_data /= 5
             Job.yieldThread()
 
         height_data *= scale_vector.y
@@ -118,8 +111,9 @@ class ImageReader(MeshReader):
 
         mesh.reserveFaceCount(total_face_count)
 
-        # initialize to texel space vertex offsets
+        # initialize to texel space vertex offsets.
-        heightmap_vertices = numpy.zeros(((width - 1) * (height - 1), 6, 3), dtype=numpy.float32)
+        # 6 is for 6 vertices for each texel quad.
+        heightmap_vertices = numpy.zeros((width_minus_one * height_minus_one, 6, 3), dtype=numpy.float32)
         heightmap_vertices = heightmap_vertices + numpy.array([[
             [0, base_height, 0],
             [0, base_height, texel_height],

plugins/ImageReader/ImageReaderUI.py

@@ -1,8 +1,8 @@
 # Copyright (c) 2015 Ultimaker B.V.
-# Copyright (c) 2013 David Braam
 # Cura is released under the terms of the AGPLv3 or higher.
 
 import os
+import threading
 
 from PyQt5.QtCore import Qt, QUrl, pyqtSignal, pyqtSlot, QObject
 from PyQt5.QtQml import QQmlComponent, QQmlContext
@@ -23,12 +23,27 @@ class ImageReaderUI(QObject):
         self.image_reader = image_reader
         self._ui_view = None
         self.show_config_ui_trigger.connect(self._actualShowConfigUI)
+
+	# There are corresponding values for these fields in ConfigUI.qml. 
+	# If you change the values here, consider updating ConfigUI.qml as well.
         self.size = 120	
         self.base_height = 2
         self.peak_height = 12
         self.smoothing = 1
 
+        self._ui_lock = threading.Lock()
+        self._cancelled = False
+
+    def getCancelled(self):
+        return self._cancelled
+
+    def waitForUIToClose(self):
+        self._ui_lock.acquire()
+        self._ui_lock.release()
+
     def showConfigUI(self):
+        self._ui_lock.acquire()
+        self._cancelled = False
         self.show_config_ui_trigger.emit()
 
     def _actualShowConfigUI(self):
@@ -49,15 +64,15 @@ class ImageReaderUI(QObject):
 
     @pyqtSlot()
     def onOkButtonClicked(self):
-        self.image_reader._canceled = False
+        self._cancelled = False
-        self.image_reader._wait = False
         self._ui_view.close()
+        self._ui_lock.release()
 
     @pyqtSlot()
     def onCancelButtonClicked(self):
-        self.image_reader._canceled = True
+        self._cancelled = True
-        self.image_reader._wait = False
         self._ui_view.close()
+        self._ui_lock.release()
 
     @pyqtSlot(str)
     def onSizeChanged(self, value):
@@ -80,9 +95,6 @@ class ImageReaderUI(QObject):
         else:
             self.peak_height = 0
 
-    @pyqtSlot(str)
+    @pyqtSlot(float)
     def onSmoothingChanged(self, value):
-        if (len(value) > 0):
         self.smoothing = int(value)
-        else:
-            self.smoothing = 0

plugins/ImageReader/__init__.py

@@ -4,7 +4,7 @@
 from . import ImageReader
 
 from UM.i18n import i18nCatalog
-i18n_catalog = i18nCatalog("uranium")
+i18n_catalog = i18nCatalog("cura")
 
 def getMetaData():
     return {