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manual:chapter2:interactivestack [2017/08/28 14:43]
claudio [Selecting items]
manual:chapter2:interactivestack [2019/12/01 13:44] (current)
jojo1973 [Selecting items]
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 ==== Selecting items ==== ==== Selecting items ====
-While in the interactive stack, you can operate on a single item -by simply moving the cursor to that item- or on multiple items by selecting them first, then operating.+ 
 +While in the interactive stack, you can operate on a single item __by simply moving the cursor to that item__ ​or on multiple items __by selecting them first, then operating ​on them__. 
 To select multiple items, move the cursor to the item in question, then press **SP**. The item will be highlighted on the screen. Moving the cursor to other items will extend the selection, and pressing **SP** again will fix the selection, so the cursor is free to move. The selection is also cleared by another tap of **SP**. To select multiple items, move the cursor to the item in question, then press **SP**. The item will be highlighted on the screen. Moving the cursor to other items will extend the selection, and pressing **SP** again will fix the selection, so the cursor is free to move. The selection is also cleared by another tap of **SP**.
  
 ==== Stack operations ==== ==== Stack operations ====
  
-== Rotating items and ranges == +=== Rotating items and ranges ==
-The most common stack operations are performed ​with the cursors ​**LF** and **RT**. When there'​s no selection, **LF** will move the item at the cursor to Level 1, while **RT** will move Level 1 to the position pointed by the cursor. Other items will simply be moved, effectively causing ''​ROLL''​ and ''​ROLLD''​ with the items between ​Level 1 and the cursor. + 
-When there'​s a selection, and only if the cursor is within the selected ​range, **LF** and **RT** will do the same but only with the selected range, effectively rotating the selected items.+The most common stack operations are performed ​using **LF** and **RT**. When there'​s no selection, **LF** will move the item at the cursor to level 1, while **RT** will move the item on level 1 to the position pointed by the cursor. Other items in between ​will move accordingly, effectively causing ''​[[manual:​chapter6:​stack:​cmd_roll|ROLL]]''​ and ''​[[manual:​chapter6:​stack:​cmd_rolld|ROLLD]]''​ with the items between ​level 1 and the cursor. 
 + 
 +When there'​s a selection, and __only ​if the cursor is within the selected ​range__, **LF** and **RT** will do the same but only within ​the selected range, effectively rotating the selected items. 
 + 
 +=== Cutting and pasting ===
  
-== Cut and paste == 
 When there'​s a selection but the cursor is pointing outside the selected range, **LF** will move the selected items to the cursor position, while **RT** will make a copy of the selected items at the cursor position, preserving the original selected range. When there'​s a selection but the cursor is pointing outside the selected range, **LF** will move the selected items to the cursor position, while **RT** will make a copy of the selected items at the cursor position, preserving the original selected range.
  
-The standard clipboard shortcuts will also work on selected items or the item at the cursor location:\\ +The standard clipboard shortcuts will also work on selected items or the item at the cursor location: 
-**LS<​sup>​hold</​sup>​-LF** will Copy the selected objects to the stack\\ +  ​* ​**LS<​sup>​hold</​sup>​-LF** will __copy__ ​the selected objects to the stack; 
-**LS<​sup>​hold</​sup>​-RT** will Paste the clipboard at the current cursor location\\ +  ​* ​**LS<​sup>​hold</​sup>​-RT** will __paste__ ​the clipboard at the current cursor location; 
-**LS<​sup>​hold</​sup>​-DN** will Cut the selected objects, removing them from the stack and leaving a copy on the clipboard\\+  ​* ​**LS<​sup>​hold</​sup>​-DN** will __cut__ ​the selected objects, removing them from the stack and leaving a copy on the clipboard.
  
-== Pick an item == +=== Picking ​an item ===
-Pressing **EN** will create a copy of the object at the cursor position at level one (similar to ''​PICK''​). It works on individual items only.+
  
-== Remove items == +Pressing **EN** will create a copy of the object ​at the cursor position ​at level 1 (similar to ''​[[manual:​chapter6:​stack:​cmd_pick|PICK]]''​). It works on individual ​items only.
-Pressing **BK** will drop the item at the cursor position, or the selected ​items if a selection exists.+
  
-== Creating and exploding composite ​items == +=== Removing ​items === 
-The interactive stack makes it simple to create composite objects:\\ + 
-Pressing **MUL** will create a vector with the items in the selection or at the cursor position. If the items include vectors or individual items of compatible dimensions, it will create ​matrix.\\ +Pressing **BK** will drop the item at the cursor position, or the selected ​items if a selection ​exists.
-Pressing **SUB** when there'​s exactly 2 items selected will create a complex number.\\ +
-Pressing **ADD** will create a list with the items in the selection ​or at the cursor position.\\ +
-Pressing **DIV** will explode a composite object into its components.+
  
 +=== Creating and exploding composite items ===
  
 +The interactive stack makes it simple to create composite objects:
  
 +  * Pressing **MUL** will create a vector with the items in the selection or at the cursor position. If the items include vectors or individual items of compatible dimensions, it will create a matrix. It is flexible with the arrangement of individual items and vectors: as long as there is one vector that determines the number of columns in the matrix, individual items can be used to fill the matrix in row order;
 +  * Pressing **SUB** when there are exactly 2 items selected will create a complex number;
 +  * Pressing **ADD** will create a list with the items in the selection or at the cursor position.
 +  * Pressing **DIV** will explode a composite object into its components.
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  • by claudio