在origin 8.0画图时，当数据点很密集时，程序会选择speed mode，而且会在图像上出现speed mode is on的水印，影响了图像的美观。

去掉speed mode is on水印的方法：菜单栏tools/options对话框的最下面一个选项：speed mode show watermark前的勾去掉。

还有一种情况是：画图时speed mode开启后，图像在数据点密集时用一条直线代替，如下图，完整的图像

是上面的a图，但画面显示的是下面b图。如果是用view中的copy page，然后粘贴到word上，图b还是显示为a图的形状，当在origin程序下，需要通过设置，才能恢复为a图的形式，设置方法：

菜单栏format---->layer------->size/speed对话框的最后两个勾去掉，就可以正常显示了。

                         图a

                                                                  图b

更多方法请看下面：

Origin中有的时候在图上会看到很大的Speed Mode Is On字样，影响图谱的观看，如何去掉呢。方法如下：

How do I control the settings of Speed Mode in Origin for plotting, printing and file export?

Follow the instructions below to turn on or off the following Speed Mode features. Check to enable options and add values where appropriate. UnCheck to disable options.

1.) Speed Mode for a Graph

Ctrl+DoubleClick on Layer icon to open Plot Details and Layer and choose Size/Speed (tab), or

Right click on Layer icon and choose Layer Properties to open Plot Details and Layer and choose Size/Speed(tab), or

From the menu Select Format : Layer to open Plot Details and Layer and choose Size/Speed (tab).

Worksheet data, maximum points per curve controls 2D, 3D XYY and 3D XYZ plots.
UNCHECK = OFF (display all points)
CHECK = ON (display a maximum number of points per curve
Value = Maximum

Matrix data, maximum points per dimension controls contours and 3D surface plots.
UNCHECK = OFF (display all points)
CHECK = ON (display a maximum number of points per curve
X Value = Resolution in the X direction
Y Value = Resolution in the Y direction

2.) Speed Mode Watermark (Origin7.5 only)

Tools : Options : Graph(tab).

Speed Mode show Watermark
UNCHECK = OFF (do not display watermark)
CHECK = ON (display watermark)
In any case, the watermark does not appear in printouts or exports.

3.) Speed Mode during Printing

From the menu Select File : Print.

Worksheet data, Skip points, and Matrix data, Maximum points control printout in the same way as in Plot Details.

4.) Speed Mode for graphs in folder, project, or all instances

Create a Theme with desired Speed Mode parameters.

The instructions for producing such a Theme are in:

“Shutting Off Speed Mode for all graphs”.

The resulting Theme file can be downloaded by clicking below.

SpeedMODE.zip

UnZip and place in the Origin Themes folder.

The Theme can be easily altered to vary Speed Mode settings.

Further aspects of Themes can be obtained from the topic "Themes Gallery" in the Origin Help Files.

5.) Speed Mode during Exporting

From the menu Select Format : Page : Miscellaneous(tab).

If Speed Mode is enabled for this display, applies to graphic export as well
UNCHECK = Do not use Speed Mode in Export
CHECK = Use Speed Mode in Export (if it is turned on)