Activates the stereo-view. The preset is anaglyphic view, in this case you will need red-cyan-glasses (or red-green, though red-cyan will give better results).
It is difficult to actually work in stereo, as the mousepointer itself is not an object in the 3D-scene. Thus the stereo-view is meant rather for viewing than for creating a scene.
Here you can switch between parallel and central projection (the default). In both modes the option ’2d’ can also be chosen. In this mode, the view will be normalized onto the xy-plane. In combination with parallel-projection, the 2d-mode is like using a 2d dynamic geometry software.
In case you would like to use the coordinate-system but hide the z-axis you can set the values zMax and zMin to 100 in the ’extras - settings - sizes’ dialogue. When changing to 2D-mode you will be asked if this setting should be applied automatically.
While this function can be called for locus-lines, too, the results are nonsensical. If you have a curve in the xy-plane and want to compute its equation you can construct the normal through the point on the curve to the xy-plane, trace this normal to get a locus surface and compute the equation of this surface.
This function optimizes the scenes representation internally. As this can lead to problems when continuing to work on the scene you should save befor optimizing.
This function is only useful for very large constructions that cannot be rotated fluently anymore.
Generates a new slider. Sliders have the following features:
Thus sliders are ideally suited for adjusting parameters.
In the sliders context-menu you can edit the possible values of the slider. If the slider drives a locus, the domain of the locus can be automatically adjusted to the range of the slider. Choose ’automatically adjust to circle or slider’ in the locus’ properties-dialog. Thus it is very easy to edit the domain of a heightfield if you construct it using a slider.
Example: Choose ’Typical tasks - co-ordinate axes’. Generate two sliders and name them x and y. Enter an expression e1*x+e2*y+e3*(x*y). Generate a point from this expression and then select x, y and the generated point. Press Alt-o. You get the graph of the heightfield z = x ⋅ y.
Check ’automatically adjust to circles and sliders’ for x and y in the locus’ properties-dialogue.
In case you change the range of one of the sliders the locus will change in real time.
Generates a light-object in the origin. Besides being a light, this object behaves like a point: It can be moved, used in animations and be attached to objects.
To create a shadow, select a light, arbitrary other objects and the object the shadow should be cast on as the last object. Pressing ’shadow’ then generates a projective shadow.
This command activates a shadowing-algorithm for the whole scene. It works best under windows where I implemented a workaround against self-shadowing artifacts. Choose ’ShadowMap’ as your shadowing algorithm.
To turn of the global shadows you will have to restart the program.
A point and a two-dimensional object (line, segment, circle) must be selected. After selecting the menu a dialogue appears that lets you adjust the start- and endpoint of the animation and the step size.
You can get the start- and endpoint by adjusting the point in the construction and then pressing the button ’Get value from construction’.
Starts or stops all animations defined in the construction, see ’New animation’, too.
Opens the current construction (without co-ordinate system) in an external viewer. Here you can fly around in the construction in fullscreen. Press ’h’ for help. The viewer is part of the OpenSceneGraph-library, see http://www.openscenegraph.org.
By selecting this menu all hidden objects are redefined to be auxiliary objects. This is useful for macros where the object-tree should not be bloated with objects when using the macro.
A group-object containing the selected objects is generated. This will give you the following possibilities:
If you check this item, the currently selected objects will blink. While this can be useful in fullscreen-mode, I personally do not like this setting.
When constructing an object with ’New object’, this mode is automatically selected temporarily.
When dealing with non-dynamic constructions it can be desirable to lock basepoints into position. This command does this for all selected points. All selected objects that are not points will be ignored.
Note that locking into position has an effect only for free points. Constructed or half-free points will still bepositioned depending on their parents.
As the name says. Changes will take effect after restarting the program. The default is the language of the underlying operating system. At the time being only German and English are available. The program itself (excluding the documentation) has been translated to French and Traditional Chinese, too. The chinese version will work on a chinese windows only.
Here various settings for Archimedes Geo3D can be adjusted. These are saved together with the construction. If you want those settings to be used as presets, press ’Use as preset’.
While running Archimedes the directory that was used last will be taken as the current setting. If you want those directorys to function as presets, press ’use as preset’.
The values xMin, xMax, yMin, yMax, zMin and zMax specify the range of the co-ordinate system.
Since version 1.1, the object-list has been hidden by default, as it has been replaced by the object-tree. In case you rather want to work with the object-list (because you are used to it, for instance), you can show it here (or hide it when it shows up in a construction that was made with an older version).
The buttons stem from the very beginning of Archiemedes Geo3D:
Here all constructions can be selected. Note that you get even more information from the buttons than from the symbols: If two lines are selected, the button ’point’ changes to ’intersection-point of two lines’.
In practice the buttons proved to be hard to find because of the abundance of text, thus the toolbar with the symbols.
The buttons ’Color’ and ’Thickness’ are useful if you want to change more than one object at once. Select the objects and then press ’Color’ or change the value of ’Thickness’.