message: Set reasonable bounds and steps for projection matrix guess controls
diff: </property>
  <layout class="QGridLayout" name="gridLayout_2">
  <item row="6" column="1">
  - <widget class="QDoubleSpinBox" name="farGuess"/>
  + <widget class="QDoubleSpinBox" name="farGuess">
  + <property name="maximum">
  + <double>1000000.000000000000000</double>
  + </property>
  + <property name="singleStep">
  + <double>10.000000000000000</double>
  + </property>
  + </widget>
  </item>
  <item row="5" column="1">
  - <widget class="QDoubleSpinBox" name="nearGuess"/>
  + <widget class="QDoubleSpinBox" name="nearGuess">
  + <property name="maximum">
  + <double>100.000000000000000</double>
  + </property>
  + <property name="singleStep">
  + <double>0.010000000000000</double>
  + </property>
  + </widget>
  </item>
  <item row="4" column="1">
  - <widget class="QDoubleSpinBox" name="aspectGuess"/>
  + <widget class="QDoubleSpinBox" name="aspectGuess">
  + <property name="minimum">
  + <double>0.000000000000000</double>
  + </property>
  + <property name="maximum">
  + <double>10.000000000000000</double>
  + </property>
  + <property name="singleStep">
  + <double>0.010000000000000</double>
  + </property>
  + </widget>
  </item>
  <item row="6" column="0">
  <widget class="QLabel" name="farGuessLabel">
  