A $ 0 码力 |
103 页 |
4.37 MB
| 1 年前 3
Safety

## simplification through generalization
key: enable programmer to directly express intent
⇒ elevate coding the simplification would come from generalization.”
— Bjarne Stroustrup (ACM HOPL-III, 2007)

##### Simplification... by to WG21 & conferences
Because it was key to simplification: Metaclass functions and parameter passing were the two biggest sources of simplification in Cpp2, because they let programmers declare their 0 码力 |
84 页 |
6.21 MB
| 1 年前 3 adaptor closure object D, the expression C | D produces another range adaptor closure object E.
Simplification: The following expressions are equivalent:
• E(R)
• D(C(R))
• R | C | D
• R | (C | D)
Range adaptor closure object D, the expression C | D produces another range adaptor closure object E.
Simplification: The following expressions are equivalent:
• E(R)
• D(C(R))
• R | C | D
• R | (C | D)
Range adaptor closure object D, the expression C | D produces another range adaptor closure object E.
Simplification: The following expressions are equivalent:
• E(R)
• D(C(R))
• R | C | D
• R | (C | D)
Range 0 码力 |
187 页 |
13.25 MB
| 1 年前 3 Simplicity for C++
10 esp. for programmers
cppfront: What’s new
Types, reflection, metafunctions, …
Simplification through generalization
Compatibility for C++
Why • What kind • What plan
3
green-field language Simplicity for C++
10 esp. for programmers
cppfront: What’s new
Types, reflection, metafunctions, …
Simplification through generalization
Compatibility for C++
Why • What kind • What plan
10
Simplicity
Efficiency size of C++ in definition
and
similar in front
-
end compiler size. ...
“…
most of the simplification would come from
generalization
”
—
Bjarne Stroustrup
(ACM HOPL
-
III, 2007)
40
C: 0 码力 |
85 页 |
5.73 MB
| 1 年前 3 points que la géométrie d'entrée. Pour réduire le nombre de points, utilisez une fonction de simplification sur le résultat (voir ST_Simplify, ST_SimplifyPreserveTopology et ST_SimplifyVW).
Le résultat l'algorithme Douglas-Peucker. La variable tolerance de simplification est une valeur de distance, dans les unités du SRS d'entrée. La simplification supprime les sommets dont la distance au réseau simplifié np100_geometrygoesaway
```
49 | 33 | 17 | 9 | 4 | t
Simplification d'un ensemble de lignes. Les lignes peuvent s'intersecter après simplification.
.
The of a geometry using the Douglas-Peucker algorithm. The simplification tolerance is a distance value, in the units of the input SRS. Simplification removes vertices which are within the tolerance distance np100_geometrygoesaway
```
49 | 33 | 17 | 9 | 4 | t
Simplifying a set of lines. Lines may intersect after simplification.

Simplifying 0 码力 |
941 页 |
5.34 MB
| 4 月前 3 result geometry may have many more points than the input. To reduce the number of points use a simplification function on the result (see ST_Simplify, ST_SimplifyPreserveTopology and ST_SimplifyVW).
The of a geometry using the Douglas-Peucker algorithm. The simplification tolerance is a distance value, in the units of the input SRS. Simplification removes vertices which are within the tolerance distance np100_geometrygoesaway
49 | 33 | 17 | 9 | 4 | t
```
Simplifying a set of lines. Lines may intersect after simplification.

```sql
SELECT 0 码力 |
998 页 |
10.44 MB
| 4 月前 3 result geometry may have many more points than the input. To reduce the number of points use a simplification function on the result (see ST_Simplify, ST_SimplifyPreserveTopology and ST_SimplifyVW).
The (multi)lines and (multi)polygons but you can safely call it with any kind of geometry. Since simplification occurs on a object-by-object basis you can also feed a GeometryCollection to this function.
(multi)lines and (multi)polygons but you can safely call it with any kind of geometry. Since simplification occurs on a object-by-object basis you can also feed a GeometryCollection to this function.
0 码力 |
944 页 |
5.04 MB
| 4 月前 3
|