Re: [QGIS-Developer] QgsGeometryUtils.lineCircleIntersection
Hi Antonio, Il 13/02/2023 15:46, Antonio Locandro via QGIS-Developer ha scritto: I am trying to use this on a script I am writing however I can’t seem to get what the syntax for the Qgs Vector should be, I was expecting just to put directly an angle but it is something else. QgsVector(x: float, y: float) See https://qgis.org/pyqgis/3.28/core/QgsVector.html#qgis.core.QgsVector On the other hand in order to use this function I need to write completely QgsGeometryUtils.lineCircleIntersection is there a way to make this shorter on my script? lineCircleIntersection = QgsGeometryUtils.lineCircleIntersection Finally why some functions require QgsPointXY while others QgsPoint, beats me, just above this one is lineCircleIntersection that requires the use of PointXY Probably because functions that use QgsPointXY only support 2D calculation. Best regards. Andrea Giudiceandrea___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
[QGIS-Developer] QgsGeometryUtils.lineCircleIntersection
Hello all, I am trying to use this on a script I am writing however I can’t seem to get what the syntax for the Qgs Vector should be, I was expecting just to put directly an angle but it is something else. lineIntersection(p1: QgsPoint, v1: QgsVector, p2: QgsPoint, v2: QgsVector) → Tuple[bool, QgsPoint] On the other hand in order to use this function I need to write completely QgsGeometryUtils.lineCircleIntersection is there a way to make this shorter on my script? Finally why some functions require QgsPointXY while others QgsPoint, beats me, just above this one is lineCircleIntersection that requires the use of PointXY. My current workaround is to use segmentIntersection but that requires the calculation of dummy points so was looking for something more direct ___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [QGIS-Developer] PyQGIS code: setting filter expression for value relation widget
Hi, I found the "QgsValueRelationSearchWidgetWrapper" class, which seems to have a "setExpression" method - but I don't know how I can access and change the QgsValueRelationSearchWidgetWrapper of an existing ComboBox in the attribute form. Andreas On 2023-02-13 11:31, Andreas Neumann via QGIS-Developer wrote: Hi, I am looking for a code snippet in PyQGIS: how can I change the filter expression for a value relation widget? Technically, the widget seems to be a QComboBox. I can get access to the combobox, e.g. to get the current value - but how can I access the QGIS related functionality, like changing programmatically settings of the value relation widget , such as the filter expression? I found the QgsValueRelationFieldFormatter object, but it doesn't allow me to change the filter expression. Any idea how I would change the filter expression using Python? Thank you for any hints, Andreas ___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
[QGIS-Developer] PyQGIS code: setting filter expression for value relation widget
Hi, I am looking for a code snippet in PyQGIS: how can I change the filter expression for a value relation widget? Technically, the widget seems to be a QComboBox. I can get access to the combobox, e.g. to get the current value - but how can I access the QGIS related functionality, like changing programmatically settings of the value relation widget , such as the filter expression? I found the QgsValueRelationFieldFormatter object, but it doesn't allow me to change the filter expression. Any idea how I would change the filter expression using Python? Thank you for any hints, Andreas___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
