geo

I have 4 columns in my data frame lat1,long1...lat2,long2. I need to calculate distance between these pairs. I am trying to use Distm function. When I try to use distm (c(mydata2$lst_upd_longitude,mydata2$lst_upd_latitude), c(mydata2$long,mydata2$lat), fun = distHaversine) R throws up an error "Error in .pointsToMatrix(x) : Wrong length for a vector, should be 2" For now I am using the below code to calculate distance for every point. But I am sure there should be a better solution. Also this code consumes lot of time. for( i in 1:nrow(mydata2)){ mydata2$distance[i] <- distm (c(mydata2$lst_upd

I've multiple geo string like geo:0,0q=1+a+bc , and I'm gonna assign this to ng-href of the anchor tag. Like below I'm doing it. HTML <a ng-href="{{geoString}}">Location</a> </br> Above tag is rendering fine on HTML but adding unsafe: string geo:0,0q=1+a+bc inside href attribute Rendered HTML <a ng-href="geo:0,0q=12345+jefferson+st" href="unsafe:geo:0,0q=12345+jefferson+st">Location</a> Plunkr with demonstrating issue. I don't want unsafe: inside href , Any idea why it is pre-appending unsafe: before geoString & How do i remove it? squiroid You need to use aHrefSanitizationWhitelist([regexp]);

What are the data needed for calculating barometric altitude? How do I get them and then calculate the altitude? Also how accurate is the barometric compared to GPS altitude? I tried GPS but after searching hours in the web I cannot find a suitable Geoid library. Please correct me if I got any concept long. You need to use the pressure sensor to measure the pressure then use the SensorManager.getAltitude(float, float) call to convert the measures pressure along with a reference sea level pressure to get the altitude. The tricky bit is what to use as the reference pressure. This will change

I need to convert meters to decimal degrees in C#. I read on Wikipedia that 1 decimal degree equals 111.32 km. But it is on equator, so if I'm located above/below it my the conversion will be wrong? I assume this is wrong: long sRad = (long.Parse(sRadTBx.Text)) / (111.32*1000); EDIT: I need this search radius to find nearby users long myLatitude = 100; long myLongitude = 100; long sRad = /* right formula to convert meters to decimal degrees*/ long begLat = myLatitude - searchRad; long endLat = myLatitude + searchRad; long begLong = myLongitude - searchRad; long endLong = myLongitude +

生物信息学 GEO 可存储基因芯片数据，支持 MIAME 。 MIAME 是 minimum information about a microarry experiment 。这之中存储研究原始数据 + 标准化之后的数据 + 样本注释信息 + 实验设计信息 + 芯片注释信息 + 样本制备和数据处理信息，即所有证明研究流程可信度的信息，上传至此数据库使他人使用数据重复实验。 Highwire press 是一个 free download software 。 来源： https://www.cnblogs.com/yuanjingnan/p/11583846.html

There are a few similar posts but I couldn't find an exact one. basically, I want to open both Google maps and Waze with the same intent. At first I tried this: final String uri = String.format(Locale.ENGLISH, "geo:%f,%f", latitude, longitude); final Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(uri)); startActivity(intent); Waze navigated directly to the right location and Google maps opened the right place. then I realized that Google maps doesn't put a pin on the location so it's hard for the user to know where it is exactly. So I looked around and realized that Google maps