api:dk11:delphi:fmx.giscontrolscale.tgis_controlscale
Table of Contents
TGIS_ControlScale class
DK for Delphi | FMX.GisControlScale.TGIS_ControlScale | Classes | Constructors | Methods | Properties | Events
FMX visual control for displaying map scale information for an attached viewer.
Available also on: .NET WinForms | Java | ActiveX | Python.
Syntax
// Delphi type [ComponentPlatformsAttribute(pidAllPlatforms)] TGIS_ControlScale = class( TStyledControl, IGIS_Subscribe, IGIS_PrintableControl ) end;
// C++ Builder class PASCALIMPLEMENTATION TGIS_ControlScale : public TStyledControl { };
Inheritance
→ TStyledControl
Implements
Constructors
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Create | public | Creates the scale control. | |
| Destroy | public | Destroys the scale control. | |
Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| CreateCopy | public | Prepare a copy of the control for printing. (Implements IGIS_PrintableControl.CreateCopy) |
|
| DoPaint | protected | Paints the scale control. | |
| DrawBmp | public | Draws the scale control on a provided bitmap. | |
| FreeCopy | public | Release a copy of the control created for printing. (Implements IGIS_PrintableControl.FreeCopy) |
|
| PrintBmp | public | Print the control on the given bitmap. (Implements IGIS_PrintableControl.PrintBmp) |
|
| PrintClipboard | public | Prints the control to the clipboard. | |
| PrintPdf | public | Print the control on the given PDF context. (Implements IGIS_PrintableControl.PrintPdf) |
|
| SubscribedEvent | public | Handles a viewer subscription notification. (Implements IGIS_Subscribe.SubscribedEvent) |
|
Properties
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Align | published | Standard FMX property. | |
| Anchors | published | Standard FMX property. | |
| ClipChildren | published | Standard FMX property. | |
| ClipParent | published | Standard FMX property. | |
| Cursor | published | Standard FMX property. | |
| DividerColor1 | published | Color of the first divider. | |
| DividerColor2 | published | Color of the second divider. | |
| Dividers | published | Number of dividers. | |
| DragMode | published | Standard FMX property. | |
| Enabled | published | Standard FMX property. | |
| EnableDragHighlight | published | Standard FMX property. | |
| Font | published | Font of the text. | |
| GIS_Viewer | published | Viewer to which the scale control is attached. | |
| Glow | published | Draws a glowing shadow around the scale. | |
| Height | published | Standard FMX property. | |
| HitTest | published | Standard FMX property. | |
| InternalName | published | Used internally by TatukGIS. (Implements IGIS_PrintableControl.InternalName) |
|
| Locked | published | Standard FMX property. | |
| Margins | published | Standard FMX property. | |
| Opacity | published | Standard FMX property. | |
| Padding | published | Standard FMX property. | |
| PopupMenu | published | Standard FMX property. | |
| Position | published | Standard FMX property. | |
| RotationAngle | published | Standard FMX property. | |
| RotationCenter | published | Standard FMX property. | |
| Scale | published | Standard FMX property. | |
| ShadowColor | published | Color of the text shadow. | |
| Size | published | Standard FMX property. | |
| TextColor | published | Color of the text. | |
| Units | public | Units used for scale output. | |
| UnitsEPSG | published | EPSG (European Petroleum Survey Group) code defining the units used for scale output. | |
| Visible | published | Standard FMX property. | |
| Width | published | Standard FMX property. | |
Events
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| OnClick | published | Standard FMX event. | |
| OnDblClick | published | Standard FMX event. | |
| OnDragDrop | published | Standard FMX event. | |
| OnDragEnd | published | Standard FMX event. | |
| OnDragEnter | published | Standard FMX event. | |
| OnDragLeave | published | Standard FMX event. | |
| OnDragOver | published | Standard FMX event. | |
| OnMouseDown | published | Standard FMX event. | |
| OnMouseEnter | published | Standard FMX event. | |
| OnMouseLeave | published | Standard FMX event. | |
| OnMouseMove | published | Standard FMX event. | |
| OnMouseUp | published | Standard FMX event. | |
| OnMouseWheel | published | Standard FMX event. | |
| OnPaint | published | Standard FMX event. | |
| OnPainting | published | Standard FMX event. | |
| OnResize | published | Standard FMX event. | |
| PrepareEvent | published | Fired before preparing and calculating the scale. | |
Remarks
PURPOSE: Displays a scale bar and scale text that reflect the current map view in a connected TGIS_ViewerWnd instance.
BEHAVIOR: The control updates its presentation from viewer state and computes distances using TGIS_Viewer.CS units settings.
USAGE: Place the control on a form and connect GIS_Viewer to a TGIS_ViewerWnd component.
CONSTRAINTS: Scale computation depends on TGIS_Viewer.CS units settings. GIS_Viewer should be connected to TGIS_ViewerWnd.
2026/08/30 01:46