====== Cell Type ======

A cell type denotes several possible cell representations in a [[Map Type|Map]] or [[Categorical Map Type|Categorical Map]].

^ Cell Type ^ Domain ^ Cell Size ^ Signed ^ Minimum Value ^ Maximum Value ^ Default Null ^ 
| 1 Bit Integer  | Integer ((can represent only integer values))  | 1 bit  | No  | 0  | 1  | 0  |
| Signed 8 Bit Integer  | :::  | 1 byte  | Yes ((can represent positive and negative values))  | -128  | 127  | -128  |
| Unsigned 8 Bit Integer  | :::  | 1 byte  | No ((can represent only positive values))  | 0  | 255  | 0  |
| Signed 16 Bit Integer  | :::  | 2 bytes  | Yes ((can represent positive and negative values))  | -32768  | 32767  | -32768  |
| Unsigned 16 Bit Integer  | :::  | 2 bytes  | No ((can represent only positive values))  | 0  | 65535  | 0  |
| Signed 32 Bit Integer  | :::  | 4 bytes  | Yes ((can represent positive and negative values))  | -2147483648  | 2147483647  | -2147483648  |
| Unsigned 32 Bit Integer  | :::  | 4 bytes  | Yes ((can represent only positive values))  | 0  | 4294967295  | 0  |
| IEEE 754 32 Bit Real((A value represented in this format usually have only 7 [[wp>Significant_figures|significant digits]]))  | Real ((can represent fractional and integer values))  | 4 bytes  | Yes ((can represent positive and negative values))  | -3.4028235*10<sup>38</sup>  | 3.4028235*10<sup>38</sup>  | -9999  |
| IEEE 754 64 Bit Real((A value represented in this format usually have only 16 [[wp>Significant_figures|significant digits]]))  | Real ((can represent fractional and integer values))  | 8 bytes  | Yes ((can represent positive and negative values))  | -2.2250738585072014*10<sup>308</sup>  | 2.2250738585072014*10<sup>308</sup>  | -9999  |

A cell type value can also be created from integral values, like [[Integer Value Type|Integer Value]], [[Positive Integer Value Type|Positive Integer Value]], [[Non Negative Integer Value Type|Non Negative Integer Value]] etc, and from real values, like [[Real Value Type|Real Value]]. The mapping of numeric values and their corresponding cell type values can be seen below:

^ Numeric Value  ^ Cell Type  ^ 
| 0  | 1 Bit Integer  |
| 1  | Signed 8 Bit Integer  |
| 2  | Unsigned 8 Bit Integer  |
| 3  | Signed 16 Bit Integer  |
| 4  | Unsigned 16 Bit Integer  |
| 5  | Signed 32 Bit Integer  |
| 6  | Unsigned 32 Bit Integer  |
| 7  | IEEE 754 32 Bit Real  |
| 8  | IEEE 754 64 Bit Real  |

It is worth noting that the definition of maps with cell type "1 Bit Integer" helps saving memory, but it also has a huge negative impact in performance. On the other hand, the use the cell type "IEEE 754 64 Bit Real" uses way more memory than any other cell type.

===== GUI Editor =====

[{{ :editors:cell_type_editor.png?nolink& |Graphical representation of the cell type editor}}]

===== EGO Script =====

A cell type constant can be represented in a [[EGO Script]] using the following syntax:

^ Cell Type ^ Representation ^ 
| 1 Bit Integer  | ''.uint1''  |
| Signed 8 Bit Integer  | ''.int8''  |
| Unsigned 8 Bit Integer  | ''.uint8''  |
| Signed 16 Bit Integer  | ''.int16''  |
| Unsigned 16 Bit Integer  | ''.uint16''  |
| Signed 32 Bit Integer  | ''.int32''  |
| Unsigned 32 Bit Integer  | ''.uint32''  |
| IEEE 754 32 Bit Real  | ''.float32''  |
| IEEE 754 64 Bit Real  | ''.float64''  |

===== Automatic Conversions =====

  * **Converted from**: [[Real Value Type]], [[Non Negative Integer Value Type]], [[Positive Integer Value Type]] and [[Integer Value Type]].

  * **Converted to**: [[Real Value Type]], [[Non Negative Integer Value Type]], [[Positive Integer Value Type]] and [[Integer Value Type]].