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SingleCrystal 1.2 for Mac Display Simulated & Observed Data with Powerful Stereographic Projections |
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21 August 2006. CrystalMaker Software Ltd is pleased to announce the immediate availability of SingleCrystal for Mac, version 1.2 - a major upgrade of our crystal diffraction and stereographic projection software - and available as a free download to existing, registered users. |
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Compare Simulated & Observed Diffraction One of the key features of SingleCrystal 1.2 is the ability to display a "background picture" in each diffraction window, with a simulated diffraction pattern as an overlay. The background picture can be any kind of image file that QuickTime supports (e.g., JPEG, TIFF, BMP, PNG, PICT, etc.). You can load the picture using the View > Background Picture command, or by simply dragging-and-dropping the image into the relevant window. Now you can take a scanned TEM diffraction pattern, drop it into SingleCrystal together with an appropriate CrystalMaker binary file - and with a minimum of fuss, index your pattern, as the illustration above shows. You'll probably want to choose a contrasting colour for your diffraction spots (or turn on the cool Phase Angle visualization!). You can rotate and scale your simulated pattern, just by clicking-and-dragging the mouse, then adjust the spot size, sample thickness and other diffraction options. Powerful New Stereogram The stereogram drawer has been redesigned and provides major new functionality. You can now plot lattice vectors (zone axes) and their traces (zones), in addition to plane normals and their traces. Poles and/or traces can be edited individually, with control over the display of labels and whether to plot a pole, a trace, or both. A new, global option, has been added to label poles in the south hemisphere. A major new feature is the ability to display and edit symmetry-related planes and vectors. You need only specify the indices of the first plane or vector, then check the "Show Symmetry Relations" checkbox and click the Show button. All related poles and/or traces are then displayed, according to the current display settings. |
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You can now display plane normals, their traces, zone axes and zones.
The left-hand stereogram is for a triclinic crystal
and shows poles for (100) and (010) lying in the
[001] zone.
The right-hand stereogram illustrates the new symmetry-relations feature. A cubic crystal is plotted with poles of the form {100}, {110} and {111}, in red, green and blue, respectively. |
Other changes include the ability to selectively hide individual, or symmetry-related poles, so as to simplify the display without losing valuable data. Stereogram settings can also be saved, thanks to a new Preferences pane. Intensity Tone Curve Simulated TEM diffraction patterns now show a wider dynamic range, thanks to the use of an intensity "tone curve". This boosts low-to-mid intensities, with a gentle roll-off at high intensities to mimic film sensitivity and saturation characteristics. The tone curve can be toggled on or off, using the Diffract > Use Tone Curve command. You can also enable or disable this feature for future windows or sessions, using the Preferences dialog. Other Changes Diffraction patterns (and background pictures) can easily be loaded simply by dragging CrystalMaker binary files (or image files) into a diffraction window. If a window already has a diffraction pattern, you can opt to replace the existing pattern or open the image in a new window. SingleCrystal initially operates in a free Demonstration mode. The full-feature version - which includes high-resolution printing, PDF graphics, symmetry-related plane display, plus much more - can be unlocked by entering a paid-for licence code.
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© 2008 CrystalMaker Software Limited. All rights reserved worldwide. |
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