比如下面的例子,车头前面部分明显有一个 gap,如果用上面的 flood fill,那么肯定前面也会被连通,但是使用 trapped ball,可以看到四周以及前面 gap 那里有一个圆形○的痕迹。 如果把 ball 的 size 设置的非常小 = 1 pixel 之类的,可能就跟 flood fill 一样了。 参考:...
the classifying including computing a dot product of an angle weighted normal at a location of the first geometry with a vector at a location of the second geometry; andusing a flood-fill algorithm to reclassify the third portion as either above the second geometry or below the second geometry...
The program’s algorithm works as follows: Creating a text file (CSV) with the following headers “Disaster type,”“Date,”“Location,” and “Impact.” Checking if the title/headline of the newspaper report or the body text includes (flood “OR” flash flood “OR” rain “OR” heavy ...
Then, for EDR and LCSS, we need to fill out the estimate distance table dTable (Algorithm 8, line 3). Each cell [i,c] of the estimate distance table corresponds to the lower bound of EDR or LCSS distance of Q1-bi to a P1-bj where c is the sid of an indexed sub-trajectory Pa...
The second part of the rheological tests involved measuring the rheological properties of various mixtures of fly ash-clay-cement. Viscosity measurements were performed using an algorithm in which the shear rate was increased by 2.0 rpm every 30 s. The rheometer started at 2.0 rpm and data was ...
supported by a database of geographic names in the area and link to the data extracted from the newspapers. However, it was difficult to find uniform newspapers reports on which to run the program. Therefore, data from some reports were extracted manually. The program’s algorithm works as ...
Several predictions of arbitrary values of parameters were generated with the algorithm and are presented here to show the effects of adjusting the parameters of the prediction algorithm on the output. Figure 4. Maps generated for Ames, Iowa using basic flood-fill (left) and HAND model (right)...
Several predictions of arbitrary values of parameters were generated with the algorithm and are presented here to show the effects of adjusting the parameters of the prediction algorithm on the output. Figure 4. Maps generated for Ames, Iowa using basic flood-fill (left) and HAND model (right)...
A group of real earthquake accelerograms matched to the target response spectrum employing the wavelets algorithm introduced by Al Atik and Abrahamson [17] are generated and reflect seismic properties specific to the area of the bridge ensuring alignment with the soil conditions prevalent in the ...
Second, stream network was derived from a DEM using D8 algorithm implemented in hydrology tool. The algorithm starts by fill gaps (central pixel with no data) and determines into which neighboring pixel any water in a central will flow. After that, the flow direction and downhill slope of a...