Image Workbench/zh-cn: Difference between revisions
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|[[FEM Workbench|FEM Workbench]] |
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== Introduction == |
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The [[Image Workbench]] manages different types of [[bitmap]] images, and allows you to open them in FreeCAD. |
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Currently, the module supports opening BMP, JPG, PNG, and XPM file formats. |
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[[Image Workbench|图像工作台]]用于管理不同类型的[[bitmap|位图]]图像，用户可借此在FreeCAD中打开这些图像。 |
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目前，该模块已支持打开BMP，JPG，PNG与XPM文件格式。 |
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* Like a [[Sketcher Workbench|Sketch]], an imported image can be attached to one of the main planes XY, XZ, or YZ, and given a positive or negative offset. |
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* The image is imported with relation of 1 pixel to 1 millimeter. |
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* The recommendation is to have the imported image at a reasonable resolution. |
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* 与[[Sketcher Workbench|草图]]相似，我们可将导入的图像附于XY，XZ或YZ主平面之一，并为之调整正、负偏移值。 |
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* 导入图像的比例关系为1像素:1毫米。 |
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A major use of this workbench is tracing over the image, with the [[Draft Workbench|Draft]] or [[Sketcher Workbench|Sketcher]] tools, in order to generate a solid body based on the contours of the image. |
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* 建议导入具有合理分辨率的图像。 |
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== 工作流程 == |
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Tracing over an image works best if the image has a small negative offset, for example, -0.1 mm, from the working plane. This means that the image will be slightly behind the plane where you draw your 2D geometry, so you won't draw on the image itself. |
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图形工作台的一个主要用途就是借助[[Draft Workbench|底图]]或[[Sketcher Workbench|草图]]工具对目标图像进行描边，即为了基于目标图像的轮廓来生成对应实体。 |
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若要进行描边处理，最好是令图像距工作平面有个较小的负偏移量，例如-0.1 mm。这就意味着图像将稍稍偏于绘制2D几何图形平面的后侧，继而就不会把2D底图/草图绘制在图像上了。 |
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The offset of the image can be set during import, or changed later through its properties. |
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可在导入图像时设置其偏移量，或者在后面的处理流程中通过修改其属性来实现这一点。 |
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Revision as of 21:35, 19 March 2020
简介
目前，该模块已支持打开BMP，JPG，PNG与XPM文件格式。
工具
Open: 在新的视口中打开图像。
Import to plane: 将图像导入至3D视图中的平面内。
Scaling: 对导入至平面内的图像进行缩放处理。
特性
- 与草图相似，我们可将导入的图像附于XY，XZ或YZ主平面之一，并为之调整正、负偏移值。
- 导入图像的比例关系为1像素:1毫米。
- 建议导入具有合理分辨率的图像。
工作流程
图形工作台的一个主要用途就是借助底图或草图工具对目标图像进行描边，即为了基于目标图像的轮廓来生成对应实体。
若要进行描边处理，最好是令图像距工作平面有个较小的负偏移量，例如-0.1 mm。这就意味着图像将稍稍偏于绘制2D几何图形平面的后侧，继而就不会把2D底图/草图绘制在图像上了。
可在导入图像时设置其偏移量，或者在后面的处理流程中通过修改其属性来实现这一点。
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Hubs: User hub, Power users hub, Developer hub