In AUTOCAD2004, how do you build your own coordinate system when making a geodetic grid? 25

The steps of the BAI system are as follows:

1.First of all

Let's open a drawing file, and first click on the tooling option card in the menu bar.

2.In the drop-down menu, click New UCS, and then click Origin.

3.After clicking, the origin of the coordinate axis will follow our mouse, and we will click the left mouse button where we need to confirm.

4.After clicking on it, we can see that the origin of the coordinate system has changed. The coordinates are set as the reference we created. This solves the problem of creating a coordinate system in CAD.

How to draw the coordinates in the BAI system?

The scalar DU is the World Coordinate System (WCS), which is the original point coordinates, which can not be changed by DAO. Also, the relative sitting mark UCS can be changed, that is, you enter UCS and then enter N New. At the specified point, this is your coordinate UCS.

And you're typing za, meaning you're only changing one point on the z-axis. x,y.Not changing.

You hold out your left hand to the screen, palm facing you, and close your ring and little fingers. Middle finger to yourself. This makes it possible to determine the plane.

The direction of the thumb and forefinger is the xy plane. The direction of the thumb and ring finger is the xz plane, and the index and ring finger are the yz plane. If you move your hand with the coordinates, you can know where the points and faces on the coordinates are.

Anonymous 4-18 01:38

Yellow warblers sing green willows, purple swallows cut spring breeze, warblers sing and swallows dance.

You have to enter this.

baiucs establishes the user coordinate system, and I won't explain much about it, and there are prompts on the next dao plane.

Yes,Version back to the world coordinate system right or enter UCS,And then enter W space on the line,Of course, you can also switch between multiple UCS,At this time, switching to the previous one can help you a lot,Hehe,I can't tell you too much about this,Because I don't use it often,I can't say wrong,In addition,The address of the query point is to enter the ID space,Listen to the people,The results of the query should be exchanged with the values of x and y.,So,You'd better consult the people.,This,You don't have a point, I've typed so far, and I'm really generous!

During the drawing process, when prompted by the command line to specify a point in the drawing, you can use a mouse or other point-specific device to specify a point in the drawing area, or you can enter a coordinate value on the command line. Coordinate values can be divided into two-dimensional coordinates and three-dimensional coordinates. The input of 2D coordinates can be in Cartesian coordinates (x,y) or polar coordinates.

You can also use Cartesian, cylindrical, or spherical coordinates to locate 3D coordinate points.

The Cartesian coordinate system consists of three axes: x, y, and z. Depending on the coordinates you want to specify (2D or 3D), you can specify coordinate values on the x, y, or three axes in it. When you specify a coordinate value, you must specify the distance along the x,y,y axis or x,y,z axis relative to the (0,0) or (0,0,0) point of the coordinate system origin, expressed in units, with positive or negative directions.

Both Cartesian and polar coordinates can be entered as absolute coordinates based on the origin, or relative as based on the previous specified point. You can also specify the relative coordinates directly by moving the cursor to specify the direction and then directly enter the distance.

When you enter coordinate values, the length of the coordinate values can be in scientific, decimal, engineering, architectural, or fractional formats. When specifying an angle, the value of the angle can be in percent, radian, survey unit, or degree minute and second format. These formats can be specified in the Drawing Units dialog box.

Enter the UCS space W space and then enter the M space, select the sheet you want to set the coordinate system, select the point where the coordinates are placed, enter 0, 0, this is the setting of the CAD world coordinates.

Enter the command zoom, select the window (w), then enter the coordinate point (0, 0), and then enter the diagonal coordinate point (50, 50), enter is OK, the coordinate point can be the given coordinate value, this method is very simple, you can try.

Custom Coordinate System: The following is to create a new coordinate system using the new origin.

Enter UCS space n space to specify the origin of the new coordinates (mouse picks the given reference coordinate origin).

CAD has a coordinate system in it, so you don't need to draw it.

In View--UCS-Coordinates--On, it is turned off.

If you want to create a new coordinate, it's in the view -- new UCS coordinatesRemember, a coordinate is a reference, not an entity!

A(,,b(, is the source domain of the linear region of the highway bai

The start and end of the game, du

The origin of the coordinate system should be established in the middle of the region.

The first step is to enter the DAO command ucs enter, a prompt appears, and enter the coordinate origin location (-495400,-3930400,,0) in the back (note: enter in CAD without parentheses);

The coordinate system is successfully established.

a(,,baib(, is the linear area of the highway.

Du start and end point as an example, coordinates zhi

The original DAO point should be established in the middle of the region.

Step 1: A. Enter the command ucs enter, a prompt appears, enter the coordinate origin location (-495400,-3930400,,0) in the back (note: enter in CAD without parentheses);

The coordinate system is successfully established.

There are three types of coordinates. Just like in mathematics, coordinates in CAD are used mathematically.

First, it is often said that Cartesian coordinates, which are also the most commonly used one, the input format is (x,y,z), of course, in the plane problem you don't have to enter the value of z, which is very simple. In addition, there is also the theory of relative coordinates, the format is (@x, y, z), which indicates the coordinates of the next point relative to the previous point, for example, the previous point is a(20,30,40), and now the input point b (@10,20,30) means that the three coordinate values of point b are 10, 20, and 30 units larger than the coordinates of point a.

The second is the polar coordinates, and the input format is (rThe third is the spherical coordinates that can be used in drawing three-dimensional, and the format is (r Note: When entering coordinates, the brackets cannot be written, that is, only the content in the brackets can be written!).

Because CAD is not a strong function in 3D modeling, the coordinate representation is a bit messy, but it determines an accuracy when we make drawings It is generally easy to remember with more practice

ucs command, the default is the world coordinates, if you want to create a coordinate, you will create a new coordinate, and you will be asked to determine the origin first. See the tips for specific operations.

When drawing 3D drawings in CAD, you should always remember that the 2D screenshots you draw are always in the X and Y coordinates. You can move the relative coordinate origin by rotating and moving the 2D section.

As for the xy plane you said, it's just a temporary setting for yourself, and you can do it if you want any of the six sides to be in the xy plane.

3- Create a user coordinate system in CAD.

In AutoCAD, click the "Tools - New UCS" command in the menu, and select the corresponding subcommand in the pop-up command submenu to create a user coordinate system.

NOTE: The meanings of the subcommands in the "New UCS" command are described as follows.

World command: Restore from the current user coordinate system to the world coordinate system. The WCS is the datum of all user coordinate systems and cannot be redefined.

Face command: Aligns the UCS to the selected face of the solid object. To select a face, click within the boundaries of the face or the boundary of the face, the selected face will be highlighted and the X-axis of the UCS will be aligned with the nearest edge on the first face found.

Object command: Quickly and easily set up a UCS based on the selected object so that the object is in a new XY plane, where the orientation of the X and Y axes depends on the selected object type. This option is not available for objects such as 3D solids, 3D polylines, viewports, multilines, regions, ellipses, rays, and multiline text.

For non-3D faceted objects, the XY plane of the new UCS is parallel to the XY plane that was in effect when the object was drawn, but the x-axis and y-axis can be rotated differently.

View command: Establish a new coordinate system in a plane perpendicular to the direction of observation (parallel to the screen) as the XY plane, leaving the UCS origin unchanged. It is often used to make text appear flat when annotating the current view.

Origin command: Defines a new UCS by moving the origin of the current UCS so that its x, y, and z axes are not the same. A coordinate system can be established at any height, and if no z-axis coordinate value is specified for the origin, the current level is used.

Z-Vector command: Define UCS with a specific z-axis positive semi-axis. Two points need to be selected, the first point is the origin of the new coordinate system, and the second point determines the forward direction of the z-axis, and the xy plane is perpendicular to the new z-axis.

"Three Points" command: Determines the positive direction of the new UCS origin and its x- and y-axes by specifying 3 points anywhere in 3D space, with the z-axis determined by a right-hand rule. The first point defines the origin of the coordinate system, the second defines the positive direction of the x-axis, and the third defines the positive direction of the y-axis.

x y z command: Rotate the current UCS axis to create a new UCS. Enter a positive or negative angle in the command prompt message to rotate the UCS, using the right-hand rule to determine the positive direction of rotation around that axis.

Tools Raw materials.

AutoCAD2008 PC.

Method steps.

1. First of all, open CAD to draw a drawing.

2. Click "Tools".

3. Click "New UCS-Origin" and select it as needed.

4. Set the selected origin to the endpoint you want to put in.

5. You can also directly enter the command "ucs", click on the end of the origin of the item, horizontally stretch to determine the direction of the x-axis, and vertically stretch to determine the direction of the y-axis.

6. The coordinate system can be established.

1.If you don't want to dimension coordinates, you can do so regardless of where the origin is.

2.Re-set the origin: UCS, just select the origin with the mouse.

Don't show UCS coordinates: View-Display-UCS coordinates, just remove the hook on the opening.

CAD is a plane Cartesian coordinate system, no need to set the corresponding coordinate parameters, whether it is the 1954 Beijing coordinate system or the 1980 Xi'an coordinate system, or the independent coordinate system of the city, without considering the error caused by the projection deformation, their spatial relative position is unchanged. That is to say, you only need to know the coordinates given to you by the planning bureau to the relative position of the space of your drawings, and you can read the corresponding coordinates.

This you have to enter UCS to establish the user coordinate system,I won't explain much about this,There are prompts below,Change back to the world coordinate system or enter UCS,And then enter W space on the line,Of course, you can also switch between multiple UCS,At this time, switching to the previous one can help you a lot,Hehe,I can't tell you too much about this,Because I don't use it often,I can't say wrong,In addition,The address of the query point is to enter the ID space,Listen to the awesome people, The results of the query should be exchanged with the values of x and y, so, you'd better consult the awesome people, this, you don't have any points, I typed the word so far, it's really generous!

Just set the coordinate points in the tensho.

Create a UCS user-defined coordinate system.

1. First of all, start the AutoCAD software.

2. Next, select the "Tools" command in the menu bar to pop up the following drop-down menu.

3. In the pop-up drop-down menu, select the "Three Points" option of the subcommand in "New UCS".

4. Follow the prompts of the "Command Line" to specify a new origin, x-axis direction, and y-axis direction.

5. The customized user coordinate system is done.

In a 3D coordinate system, points are defined using Cartesian or polar coordinate methods. Draw 3D shapes, using cylindrical and spherical coordinates to define points. Cylindrical coordinate system: expressed using the angle of the xy plane and the distance along the z-axis, format:

xy plane distance.

xy plane distance.

Spherical coordinate system: It has three parameters: the distance from the point to the origin, the angle in the xy plane and the angle between the point and the xy plane

xyz distance.

xyz distance.

1.For newly drawn figures, enter the absolute coordinate value when the command asks for coordinates, and then you can draw according to the coordinate origin;

2.For existing graphics, you can select the desired graphics and right-click the mouse, select "Copy with Base Point" in the pop-up menu, and then specify the coordinate value to be positioned to the origin, and then "Paste" and enter "0,0" in the command line, and the graphics can be pasted to the coordinate origin.

In this way, you can use the Move command to move the coordinate point in the graph, (i.e., the point you specify) to the origin.

In CAD, only the last coordinate system, (a figure), we can only move **, to the specified point coincides with the point on the coordinates!