The Tab key locks the cursor's direction of travel.
To use direction lock
When drawing, after placing the first point, drag the mouse to a new location and tap the Tab key to lock the direction.
Draw a line using direction lock
Start the Line command, and place the first line point. 使用任何一種物件鎖點鎖定至其它物件上。
Tap the Tab key. The marker is now constrained along the line between the first point and the point where the marker, was when you tapped the Tab key. If grid snap is on and ortho is activated, the direction lock snaps to grid lines.
附註
Use the direction lock constraint when you want the line to pass through the end of a curve and then go beyond it. Turn on end object snap. When you move the cursor close to the end of the curve, the marker snaps to the curve end. Tap the Tab key and then move the mouse beyond the curve end and pick. The line will pass through the end of the curve.
Use direction lock constraint combined with the distance constraint to draw a curve of a specified length and then constrain the angle with the Tab key.
Circle lock (Tab key)
A second tap of the Tab key will set Rhino into a tracking mode on a circle where, instead of locking to a line defined by the last pick point and the 3‑D mouse location when the Tab key is tapped, Rhino tracks to a circle with the center at the last pick point and the radius defined by the Tab tap location.
To use circle lock
When drawing, after placing the first point, drag the mouse to a new location and tap the Tab key twice to lock the circle radius.
At the Next point... prompt, hold Ctrl and pick a point in the perspective viewport.
在 Perspective 作業視窗移動滑鼠游標。 A tracking line displays, indicating that the marker is constrained to move perpendicular to the construction plane. Click to select the point. Notice the location of the marker in the other views.
使用垂直模式將物件往與工作平面垂直的方向拖曳
選取要移動的物件。
Hold Ctrl and click and drag the selection set. 軌跡線的起點是您點選物件的點，終點是滑鼠標記的位置，軌跡線的長度是物件被移動的距離。
Release the left mouse button to place the objects.
如果不小心啟用了垂直模式
After starting elevator mode, hold Ctrl and click the left mouse button again.
繼續指定其它的點。 或在其它位置再次啟用垂直模式。
角度限制與垂直限制搭配使用
Start the Line command and place the first line point.
At the End of line… prompt, move the mouse to the location where the line should end, activate elevator (press Ctrl ), and type <30. 直線的終點會放在垂直限制的軌跡線上，直線與工作平面呈 30 度夾角。
At the X coordinate of prompt, with the End object snap activated, pick the right end point of the line.
This sets the x coordinate of the point to the right end of the curve.
輸入 .y。
At the Y coordinate of prompt with the End object snap activated, pick the left endpoint of the line. This sets the y coordinate of the point to the left end of the curve.
任意在工作平面上指定一點 (Z 座標為 0) 建立點物件。 If you specified an x value, the coordinate of the new point matches the x value of the first point and the y, z value of the second point.
Entering numbers
Use numbers for entering distances, angles, and point coordinates.
No spaces are permitted in a number, angle, or x, y, z coordinate points.
基本數字
整數
123
小數
123.456
0.456
.456
科學記數法
-1.23456e10
1.23456E10
分數
5/16
1-3/4 (1.75)
單位
You can specify units when typing lengths and point coordinates. The numbers will automatically convert to the model's units. For example, if your model units are meters, and you type 27cm, Rhino automatically converts your number to 0.27. This also works for converting feet and inches or any other unit system.
Unit examples
1.235millimeters
-1.234cm
+16'5" (16 英呎 5 英吋)
1'2-3/4" (1 英呎 2.75 英吋)
笛卡兒座標
當 Rhino 提示輸入一個點時，您可以使用滑鼠在作業視窗中指定一點或以許多不同的方式輸入座標值：
您可以輸入 XY 座標或 XYZ 座標指定一個點，以 w 開頭的座標為世界座標，以 r 開頭的是相對座標，以 wr 開頭的是世界相對座標。
At a prompt, type the coordinate in the format x,y where x is the x coordinate and y is the y coordinate of the point.
Use 3-D construction plane coordinates
At a prompt, type the coordinate in the format x,y,z where x is the x coordinate, y is the y coordinate, and z is the z coordinate of the point. 輸入的座標值之間不能有空格。
To place a point 3 units in the x direction, four units in the y direction, and 10 units in the z direction from the construction plane origin, type 3,4,10 at the prompt. If you enter only x and y coordinates, the point will lie on the construction plane.
範例
X,Y,Z
3,4,5
2,-11 (2,-11,0) 省略 Z 座標時，Z 座標自動設為 0。
If you type only x and y coordinates, the point will lie on the construction plane of the active view.
Start the Line command and place the first line point at 0,0. 直線會以工作平面原點為起點。
在直線終點…提示下，輸入 12,6,10，按 Enter。 The line is drawn from the construction plane origin to a point 12 units along the x-axis, 6 units along the y-axis, and 10 units along the z-axis of the current construction plane.
The arrow icon in the lower left corner of each viewport displays the direction of the world x, y, and z axes. The arrows move to show the orientation of the world axes when you rotate a view.
Use 2-D world coordinates
At a prompt, type the coordinate in the format wx,y, and press Enter.
Use 3-D world coordinates
At a prompt, type the coordinate in the format wx,y,z, and press Enter.
To place a point 3 units in the world x direction, 4 units in the world y direction, and 10 units in the world z direction from the world origin, type w3,4,10 at the prompt.
附註
w0 是 w0,0,0 的縮寫。
輸入的座標值之間不能有空格。
範例
在座標之前加上 w，可以使用世界座標系統輸入，否則輸入的座標預設為使用中作業視窗的工作平面座標。
世界 X,Y,Z
w9,3,4
世界極座標
w78<32
Use world coordinates to draw a line
Start the Line command and place the first line point at w0,0,0, and press Enter. 直線會以世界座標原點為起點。
At the End of line… prompt, type r2,3, and press Enter or Space. The line is drawn to a point 2 units in the x direction and 3 units in the y direction from the last point.
智慧軌跡
物件鎖點
Ortho
