You can create a picture in a Mathcad worksheet in the following ways:
• By using the picture operator and supplying it either the name of a Mathcad matrix or the name of an external bitmap file as a string expression, or
• By pasting in a graphic image from another application via the clipboard.
Creating a picture from a matrix
You can view any matrix in Mathcad as a picture by using the picture operator:
• Click in a blank space in your Mathcad worksheet.
• Choose Picture from the Insert menu.
• Type the name of a matrix in the placeholder at the bottom of the operator.
This is most useful when you import graphics files into Mathcad as matrices as described in “Reading and writing graphics files” on page 582. For example, you can use the READBMP function to read a bitmap file into a matrix, and then use the picture operator to see the picture in Mathcad. See the figure on page 584 for an example
Creating a picture by reference to a bitmap file
To _C7eatea picture directly from a bitmap file without reading it first into a matrix, click in a blank space in your worksheet and then:
• Choose Picture from the Insert menu to insert the picture operator.
• In the placeholder, type a string expression containing the name of a bitmap file in the current directory, or type a full path to a bitmap file. Click outside the picture operator and the bitmap will appear in your worksheet
Each time you open the worksheet or calculate the worksheet, the bitmap file will be read into the picture operator. If you modify the source bitmap file, you must recalculate your worksheet to see the modified image. If you move the source bitmap file, Mathcad will not be able to display the picture.
Importing graphic images from the clipboard
You can copy any image from another application to the clipboard and paste it into Mathcad in one of the formats put on the clipboard at the time of copying. If you use the Paste command on Mathcad’s Edit menu to paste in an image from the clipboard (or use drag-and-drop from another application), you will often paste a linked OLE object into your Mathcad worksheet, as discussed “Worksheet Management.”
When you double-click on a linked OLE object, you activate the application that created the object and are able to edit the object in your Mathcad worksheet. This section describes using the Paste Special command on the Edit menu to paste graphic images into Mathcad worksheets in noneditable formats: as pictures (metafiles) or bitmaps. A metafile, which is strictly a Windows graphic format, can be resized in Mathcad without undue loss of resolution, whereas a bitmap is usually viewed best only at its original size. A device-independent bitmap, or DIB, is stored in a bitmap format that is portable to other operating systems.
To paste a graphics image from the clipboard into Mathcad, do the following:
• Place the graphics image on the clipboard, usually via a Copy command on the Edit menu. Many Windows applications have this feature.
• Click the mouse wherever you want the image in your Mathcad worksheet. .Choose Paste Special from the Edit menu, and choose one of the available formats. If you do not wish to paste a linked OLE object, choose “Picture (metafile)” or “Device Independent Bitmap” from the list in the Paste Special dialog box.
• Click “OK.” Mathcad creates a picture region and puts into it the image stored on the clipboard.
The format choices in the Paste Special dialog box will vary, depending on the application from which you originally copied a selection. Mathcad stores the color depth-the number of colors in the image-at the time you paste it into a worksheet. This means that you can safely resave any worksheets that contain color images on systems that have different color displays, either fewer or more colors. The images will continue to display at the proper color depth on the systems that created the worksheets.
When you import directly from the clipboard, the picture information is stored as part of the Mathcad worksheet. This makes the document take up more disk space. It also means that when you copy the worksheet, the picture information travels along with it.