AutoCAD英文PPT学习教案

1、会计学1AutoCAD英文英文2第1页/共124页3第2页/共124页4第3页/共124页5第4页/共124页6第5页/共124页7第6页/共124页8第7页/共124页9Each part name of the AutoCAD2004 interface is as the follow map:第8页/共124页10To. Do this. Zoom in or out Rotate the wheel forward to zoom in, backward to zoom out Zoom to drawing extents Double-click the wheel butto

2、n Pan Hold down the wheel button and drag the mouse Pan (joystick) Hold down CTRL and the wheel button, and drag the mouse 第9页/共124页11第10页/共124页12第11页/共124页13第12页/共124页14第13页/共124页15第14页/共124页16第15页/共124页17第16页/共124页18第17页/共124页19第18页/共124页20第19页/共124页21第20页/共124页22第21页/共124页231.13 Undo and Redo1.UN

3、DO Reverses your last action. To reverse more than one action at a time, click the arrow next to the Undo button on the Standard toolbar and select the last in the sequence of actions you want to undo. UNDO has no effect on some commands and system variables, including those that open, close, or sav

4、e a window or a drawing, display information, change the graphics display, regenerate the drawing, or export the drawing in a different format. 第22页/共124页24Enter the number of operations to undo or Auto/Control/BEgin/End/Mark/Back:Enter a positive number, enter an option, or press ENTER to undo a si

5、ngle operation UNDO displays the command or system variable name on the command line to indicate that you have stepped past the point where the command was used. Reverses the effects of previous UNDO or U commandsREDO reverses the effects of a single UNDO or U command. REDO must immediately follow t

6、he U or UNDO command. 第23页/共124页25第24页/共124页26Set Drawing Units:第25页/共124页27第26页/共124页28 In response to the Select Objects prompt, you can select many objects at the same time. For example, you can specify a rectangular area in which all objects are then selected or you can specify a selection fence

7、 that selects all objects through which the fence passes. (1)Specify a Rectangular Selection Area You can select objects by specifying opposite corners to define a rectangular area. After specifying the first corner point, you can Drag your cursor from left to right to create an enclosing window sel

8、ection. Only objects that the rectangular window entirely encloses are selected. Drag your cursor from right to left to create a crossing selection. Objects that the rectangular window encloses or crosses are selected.第27页/共124页29When selecting objects with a window selection, usually the entire obj

9、ect must be contained in the window selection box. However, if an object with a noncontinuous (dashed) linetype is only partially visible in the viewport and all the visible vectors of the linetype can be enclosed within the selection window, the entire object is selected. (2) Remove Selection from

10、Multiple Objects You can remove objects from the current selection set by holding down SHIFT and selecting them again, or by holding down SHIFT and then clicking and dragging window or crossing selections. You can add and remove objects repeatedly from the selection set. 第28页/共124页30第29页/共124页31第30页

11、/共124页32第31页/共124页33 By creating layers, you can associate similar types of objects by assigning them to the same layer. For example, you can put construction lines, text, dimensions, and title blocks on separate layers. 第32页/共124页34?第33页/共124页35第34页/共124页36第35页/共124页37AutoCAD displays the following

12、 prompt; you can pan the drawing display in real time. Press ESC or ENTER to exit, or right-click to display a shortcut menu. Chapter 2 Control the 2D Drawing Views And Layer Operation第36页/共124页38Specify corner of window, enter a scale factor (nX or nXP), or All/Center/Dynamic/Extents/Previous/Scale

13、/Window : ALL Zooms to display the entire drawing in the current viewport. In a plan view, AutoCAD zooms to the drawing limits or current extents, whichever is greater. CenterZooms to display a window defined by a center point and a magnification value or height. 第37页/共124页39Previous Zooms to displa

14、y the previous view. 第38页/共124页40Enter a value followed by xp to specify the scale relative to paper space units. For example, entering .5xp displays model space at half the scale of paper space units. 第39页/共124页41Real Time Using the pointing device, zooms interactively to a logical extent. 第40页/共12

15、4页42第41页/共124页43第42页/共124页44第43页/共124页45 Specify first point:Specify a point or press ENTER to continue from the last drawn line or arc Specify next point or Close/Undo: For example, the following command sequence draws a single line segment. Command:line Specify first point:Specify a point (1) Spec

16、ify next point or Undo:Specify a point (2) Specify next point or Undo:Press ENTER 第44页/共124页46Specify center point for circle or 3P (Three Points)/2P (Two Points)/Ttr (tan tan radius):Specify a point or enter an option Center Point: center point + radius (diameter). 3P (Three Points): three points o

17、n the circumference. 2P (Two Points): two endpoints of the diameter. TTR (Tangent, Tangent, Radius): radius + tangent to two objects. Sometimes more than one circle matches the specified criteria. AutoCAD draws the circle of the specified radius whose tangent points are closest to the selected point

18、s. 第45页/共124页47Specify start point of arc or CEnter:Specify a point, enter ce, or press ENTER to start tangent to last line, arc, or polyline Draw Arc methods:1. 3Points: Start Point , Second Point , End Point2. Start Point , Centre Point , End Point3. Start Point , Centre Point , Angle4. Start Poin

19、t , Centre Point , Length5. Start Point , End Point , Angle第46页/共124页486. Start Point , End Point , Direction7. Start Point , End Point , Radius8. Centre , Start Point , End Point9. Centre , Start Point , Angle10. Centre , Start Point , Length11. Continue第47页/共124页49Specify axis endpoint of ellipse

20、or Arc/Center/Isocircle:Specify a point or enter an option 第48页/共124页50Specify first corner point or Chamfer/Elevation/Fillet/Thickness/Width:Enter an option or specify a point 第49页/共124页51 Enter number of sides :Enter a value between 3 and 1024 or press ENTER Specify center of polygon or Edge:Speci

21、fy a point (1) or enter e Methods of create PolygonCenter of Polygon:(1) Inscribed in Circle; (2) Circumscribed about Circle Edge第50页/共124页52第51页/共124页53Point Style (see the right graphics): Format menuPoint Style 第52页/共124页54Current settings: Justification = current, Scale = current, Style = curren

22、t Specify start point or Justification/Scale/STyle:Specify a point or enter an option 第53页/共124页55Operation Step: first pointnext point start tangent end tangent.第54页/共124页56Specify a point or Hor/Ver/Ang/Bisect/Offset:Specify a point or enter an option 第55页/共124页57Enter a pattern name or ?/Solid/Us

23、er defined :Enter a predefined or custom pattern name, enter an option, or press ENTER Hatch Style Codes:n (Normal)o (Outer) i (Ignore) NormalOuterIgnore第56页/共124页58Specify start point:Specify a point (1) Current line-width is Specify next point or Arc/Close/Halfwidth/Length/Undo/Width:Specify a poi

24、nt (2) or enter an option 第57页/共124页59uFunction: Set running object snap modes The Object Snaps tab of the Drafting Settings dialog box is displayed. Current osnap modes: current Enter list of object snap modes:Enter names of object snap modes separated with commas, or enter none or off Ifyouenter-o

25、snapattheCommandprompt,OSNAPpresentsoptionsonthecommandline.第58页/共124页60第59页/共124页61Center Snap to the center of an arc, circle, ellipse, or elliptical arc. 第60页/共124页62Intersection Snap to the intersection of an arc, circle, ellipse, elliptical arc, line, multiline, polyline, ray, region, spline, o

26、r xline. Extended Intersection snaps to the potential intersection of two objects that would intersect if the objects were extended along their natural paths. 第61页/共124页63 Perpendicular Snaptoapointperpendiculartoanarc,circle,ellipse,ellipticalarc,line,multiline,polyline,ray,region,solid,spline,orxl

27、ine.第62页/共124页64 Nearest Snaptothenearestpointonanarc,circle,ellipse,ellipticalarc,line,multiline,point,polyline,ray,spline,orxline. ParallelDrawsavectorparalleltoanotherobjectwheneverAutoCADpromptsyouforthesecondpointofavector.Clear All Turns off all object snap modes. 第63页/共124页653.UsePolarTrackin

28、gandPolarSnap Function:usepolartrackingtodisplaytemporaryalignmentpathsdefinedbythepolaranglesyouspecify. Specify Polar Angles (Polar Tracking) usepolartrackingtotrackalongpolarangleincrementsof90,60,45,30,22.5,18,15,10,and5degrees,oryoucanspecifyotherangles.第64页/共124页66PolarSnaprestrictscursormovem

29、enttoincrementsofapolardistanceyouspecify.Torestrictpointentrytopolardistances,bothpolartrackingandSnapmode(settoPolarSnap)mustbeon.第65页/共124页67AtanAutoCADpromptforlocatingapoint,enterfrom,andthenenteratemporaryreferenceorbasepointfromwhichyoucanspecifyanoffsettolocatethenextpoint.Entertheoffsetloca

30、tionfromthisbasepointasarelativecoordinate.第66页/共124页68AtanyAutoCADprompttolocateapoint,entertracking,track,ortk.Trackingspecifiesaseriesoftemporarypoints,eachoffsetfromthepreviousone.Firsttrackingpoint:SpecifyalocationordistanceNextpoint(PressENTERtoendtracking):Specifyasecondlocationordistance第67页

31、/共124页697. Example1 第68页/共124页70第69页/共124页71Object-specific Properties: forexample,thepropertiesofacircleincluderadiusandarea,andthepropertiesofalineincludelengthandangle.Whenapropertyissettoaspecificvalue,thatvalueoverridesthevaluesetforthelayer.Forexample,ifalinedrawnonLayer0isassignedthecolorBlue

32、,andLayer0isassignedthecolorRed,thelineisblue.第70页/共124页72Copy Properties between Objects Copy some or all properties of one object to other objects using Match Properties. The types of properties that can be copied include, but are not limited to, color, layer, linetype, linetype scale, lineweight,

33、 plot style, and thickness. 第71页/共124页73第72页/共124页74Command Format: Shortcut menu: Select the objects to copy, right-click in the drawing area, and choose Copy Selection. Select objects:Select objects and press ENTER Specify base point or displacement, or Multiple:Specify a point for a single copy o

34、r enter m for multiple copies 第73页/共124页75uPolar ArrayTwo Pattern :uRectangular Array第74页/共124页76 Function: Create concentric circles, parallel lines, and parallel curves .Command Operation Manner:Specify offset distance or Through :Specify a distance, enter t, or press ENTER 第75页/共124页77Select objects:Use an object selection method and press ENTER to finish S